History Funny / WhatsMyLine

** On the April 26, 1953 episode, the second contestant was Norma Moyer, who was a riveter for Army cots. Steve Allen, having established that the product she works with could be used for recreation around a lake or river, gets the idea that it's a boat of some kind, leading to increasing laughter from the audience as he asks things like "would it be unwise to overcrowd one of these?". Then he starts to ask "If a young man and a young lady happen to get into one of these, does the man have to..." at which point the audience starts laughing so hard and so long that he gives up and passes to Arlene Francis.

* During the Larry Blyden era, a 1973 episode saw, following a segment about a pizza maker, guest panelists Gene Rayburn and Creator/AlanAlda toss pizza dough rounds in the air ...only for one to be tossed ''so'' high it landed in the overhead lights and didn't come down. The audience was uproarious in their laughter as the cameras focused on the round being stuck high above the stage.

* In one episode the contestant drives a garbage truck, prompting non-stop laughter on the subject of the 'product' involved. Steve Allen's very first question ("Is there a product involved in what you do?") resulted in peals of laughter from the audience and a hilarious ThisIsGonnaSuck expression from Allen.

'''John Daly:''' What, you mean you don't like to see what's going on? ''[laughs]'' No, I would say this, I think it would be unfair to- ''[Ed Sullivan produces a caveman-like rubber mask and puts it over his head; John Daly trails off laughing]'' I didn't realize it was that hot in here![[note]] A similar mask appeared in several episodes of ''Series/TheDickVanDykeShow''.[[/note]]

* During the Steve Allen era, after the question "Is it bigger than a breadbox?" had become almost standard during the interrogation of guests, the producers used up [[https://www.youtube.com/watch?v=qZbh7PqPoVU the last few minutes]] of the 11 October 1953 episode by sending out Fred Burg, who made...breadboxes. When Dorothy Kilgallen, having established that Burg dealt with a product that would be found on the ground floor of a two-story home, asked, "But it's not larger than...a breadbox?", the audience fell about laughing. As a breadbox is not technically larger than itself, questioning passed to Steve Allen, who put two and two together.

'''Arlene Francis:''' Uh...I'm gonna pass to Bennett.\\

'''Steve Allen:''' Never mind...never mind all that, who just did what to who here?\\

'''John Daly:''' Um...we've had, uh, several committee meetings...we didn't need 'em. '''No.''' ''[flips over a card]'' That's, uh...oh, two down and eight to go, ''[flips over a second card]'' Mr. Cerf. I must have missed one.\\
'''Bennett Cerf:''' I'd like to ask a, a rather personal question. Uh...do Mischa Elman and Jascha Heifetz [[DreadfulMusician scream with horror at mere mention of your name?]]\\

'''Groucho Marx:''' Well, she could be even luckier, she's not going to get the answer. Now this product you manufacture, is it sold...would you be apt to find this in the living room, or the dining room, or the kitchen?\\

'''Groucho Marx:''' Well, she must make something, a woman can't make a living just being a blonde...although I've heard of a few who have! ''(gales of laughter from audience and panel)''\\

'''Dorothy Kilgallen:''' ''(trying to regain her composure)'' Miss Grable...are the men and women that you come in contact with more or less infrequently or frequently, as the case may be, are they grown-up human beings?\\

* In one episode the contestant drives a garbage truck, prompting non-stop laughter on the subject of the 'product' involved. Steven Allen's very first question ("Is there a product involved in what you do?") resulted in peals of laughter from the audience and a hilarious ThisIsGonnaSuck expression from Allen.

* Early in the syndicated run, panelist Anita Gillette accidentally introduced Allen Ludden as "Allen Funt" (host of ''CandidCamera''). Moments later, after Wally Bruner was introduced and took his seat, he welcomed the home audience, "Welcome to ''Candid What's My Line?''"

* The guest panelist on the 29 April 1956 episode was comedian and ventriloquist Creator/PaulWinchell, who appeared with his dummy, Jerry Mahoney. [[https://www.youtube.com/watch?v=ZBPnMHsB0vw The Mystery Guest]] for the episode was Winchell's fellow ventriloquist Creator/EdgarBergen, who appeared with one of ''his'' dummies, Mortimer Snerd (indeed, Bergen signed in using Snerd's name). When Winchell successfully identified Bergen, Mahoney inevitably tried to persuade Snerd that the two of them should leave Bergen and Winchell and form their own double act, suggesting "I could work your head, you could work mine!"

'''Arlene Francis:''' We did say that. Did we say that she does work for a profit-making organization?\\

* [[Creator/MarxBrothers Groucho Marx]], who for most of ''Line''[='s=] run was hosting ''Series/YouBetYourLife'', made four appearances on the show from 1959 to 1967--twice as a guest panelist and twice as the mystery guest. His [[http://www.youtube.com/watch?v=p6wxrLjJobM first appearance]] as a guest panelist was on the 20 September 1959 episode. As you might have guessed, HilarityEnsues. The fact that the guests include a jail warden who looks uncannily like Soviet premier Nikita Khrushchev (who, the day before the episode was recorded, was denied permission to visit Disneyland because his security could not be guaranteed) and female professional wrestler Judy "Barefoot Contessa" Grable just helps things along.
** Groucho inevitably doesn't bother paying attention to the questions asked by Arlene Francis, Dorothy Kilgallen, and Bennett Cerf, or the answers they receive, when asking his own questions - which, though not unusual ''What's My Line?'' questions (if a guest makes a household product: "Is your product used in the kitchen?"; if the guest provides a service that involves touching clients: "Do you touch them above the waist?"), are thus complete non sequiturs in context.
--->''(so far, the panel have established only that the first guest contestant, Henry [=McFarland=], is salaried and does not work for a profit-making organization)''\\

** Groucho's questions remain so surreal that some of his fellow panelists become a bit rattled:
--->''(the panel have so far established only that the second guest contestant, Judy Grable, is not connected with tourism or instruction, but works indoors)''\\

** Finally, at the beginning of the Mystery Guest round, John Daly is already nearly paralyzed by laughter as Groucho has his blindfold in seemingly every position on his face except over his eyes; when Creator/ClaudetteColbert is brought out as the guest, Groucho's blindfold is over his nose instead of his eyes ("My eyes are prettier," he explains), and John Daly disqualifies him from questioning. Not that this stops the episode's RunningGag from appearing again:
--->'''Dorothy Kilgallen:''' Are you in the motion picture business?\\

'''Groucho Marx:''' ''(shakes head)'' No, that's no indication at all. Is it a woman? ''(Claudette Colbert is struggling to keep from laughing and giving herself away to the other panelists)'' Is it up to me?\\

* John Daly was noted for, if the panel asked a question that could be answered "yes" or "no" depending on interpretation, first conferring with the guest and then giving a convoluted speech which almost invariably raised more questions than it answered. However, when the famously verbally dexterous actor and singer Creator/DannyKaye appeared as a guest on the 5 November 1961 episode, [[https://www.youtube.com/watch?v=JIV47SaWNdo he turned the tables on Daly]] by asking a ridiculously convoluted (and deliberately content-free) question:

* After stepping down as a regular, Steve Allen made a number of return appearances as both a guest on the panel and a mystery guest. On the 4 October 1964 episode with Creator/BuddyHackett as [[https://www.youtube.com/watch?v=Tf0Ufd2mSNY a guest panelist]], Allen was the episode's mystery guest, but things didn't quite go according to plan thanks to a verbal slip from John Daly:

** On the 20 September 1953 episode, [[https://www.youtube.com/watch?v=Eh0_LfG41dQ the second guest]] was Elfrida Fritz of Buffalo, New York, who repaired zippers. The first questions were asked by Steve Allen, who, after establishing that a product was involved and that it was a mechanical device, was clearly thinking it was a typewriter. This led to such unintentionally hilarious questions as "Might you possibly find one or more of these in a very well-equipped office?", "Would any efficient secretary know how to operate one?", and finally, "Would it be safe to say when you're using one of these and you get to the end of a line, a bell rings?", each one greeted by increasingly loud laughter from the audience.
** On the 3 March 1957 episode, [[https://www.youtube.com/watch?v=6yBp5xuxxNg the second guest]] was Arch Poole of Rocky River, Ohio, who ran a diaper service. Martin Gabel established that there was a product involved, and Dorothy Kilgallen established that it was a product that could be worn by human beings, but the audience completely lost it when she then asked if anyone on the panel could wear the product, and again when, after establishing that it was something that could be worn by both sexes, she asked if Bennett could wear the product (John Daly replied, "You mean ''now?''"). Dorothy eventually deduced what the product was, but immediately passed to Bennett, who said "So, this is something that protects the wee ones from, uh..." Which is as far as he got before the audience and the panel fell about laughing ''again'' - in John Daly's case, so much so that he got up from his chair for a few seconds to regain his composure.
** In the Nov. 13, 1960 episode, the first contestant was the newly-elected governor of Delaware, who's previous job was running a fertilizer company. When asked of his product, "can you sit on it?" he had to admit that you could, but that wasn't its use. Then, near the end of the round, guest panelist Joey Bishop clarified "And if you're really pooped, you can sit on it?" The audience erupted in laughter

* British ''Line'' chairman Eamonn Andrews [[https://www.youtube.com/watch?v=n_nMysvNzXc filled in for John Daly]] on the 28 June 1959 episode, and as the panel were quizzing final guest Becky Swanzy (a salesgirl of false teeth) of Charlotte, North Carolina, he invoked ExactWords to hilarious effect:

--->''(so far, the panel have established only that the first guest, Henry [=McFarland=], is salaried and does not work for a profit-making organization)''\\

--->''(the panel have so far established only that the guest, Judy Grable, is not connected with tourism or instruction, but works indoors)''\\

** In the Nov. 13, 1960 episode, the first contestant was the newly-elected governor of Delaware, who's previous job was running a fertilizer company. When asked of his product, "can you sit on it?" he had to admit that you could, but that wasn't its use. Then, near the end of the round, guest panelist Joey Bishop clarified "And if you're really pooped, you can sit on it?" The whole theater lost it.

* When Ed Wynn was [[https://www.youtube.com/watch?v=vJRG3DOr7F4 the mystery guest]] on the 18 April 1954 episode, he answered via violin to avoid using his extremely distinctive voice. Then, when answering, he accidentally whacked himself in the cheek with it and made a goofy face, causing both John Daly and the audience to completely lose it.

* The guest panellist on the 29 April 1956 episode was comedian and ventriloquist Creator/PaulWinchell, who appeared with his dummy, Jerry Mahoney. [[https://www.youtube.com/watch?v=ZBPnMHsB0vw The Mystery Guest]] for the episode was Winchell's fellow ventriloquist Creator/EdgarBergen, who appeared with one of ''his'' dummies, Mortimer Snerd (indeed, Bergen signed in using Snerd's name). When Winchell successfully identified Bergen, Mahoney inevitably tried to persuade Snerd that the two of them should leave Bergen and Winchell and form their own double act, suggesting "I could work your head, you could work mine!"

* Groucho Marx, who for most of ''Line''[='s=] run was hosting ''Series/YouBetYourLife''. His [[http://www.youtube.com/watch?v=p6wxrLjJobM first appearance]] on the panel (September 20, 1959). As you might have guessed, HilarityEnsues. The fact that the guests include a jail warden who looks uncannily like Soviet premier Nikita Khrushchev (who, the day before the episode was recorded, was denied permission to visit Disneyland because his security could not be guaranteed) and female professional wrestler Judy "Barefoot Contessa" Grable just helps things along.

** During the Mystery Guest segment on Groucho's [[https://www.youtube.com/watch?v=tYSrDfn7z1Q return to the panel]] on the 15 November 1964 episode (featuring Anne Bancroft as the Mystery Guest), the panel had already racked up nine "No" answers, and a stumped Dorothy Kilgallen passed to Groucho, reasoning that at least he would have something funny to say. She was right:

* During the Steve Allen era, after the question "Is it bigger than a breadbox?" had become almost standard during the interrogation of guests, the producers used up [[https://www.youtube.com/watch?v=qZbh7PqPoVU the last few minutes]] of the 11 October 1953 episode by sending out Fred Burg, who made... breadboxes. When Dorothy Kilgallen, having established that Burg dealt with a product that would be found on the ground floor of a two-story home, asked, "But it's not larger than... a breadbox?", the audience fell about laughing. As a breadbox is not technically larger than itself, questioning passed to Steve Allen, who put two and two together.

* When Creator/EdgarBergen appeared as [[https://www.youtube.com/watch?v=MR0Rh1RFxpg the mystery guest]] on the 26 December 1954 episode, accompanied by Charlie [=McCarthy=], Charlie took offense to Bennett Cerf's question that the guest's partner, established to be "related" to the guest but not by marriage, was an animal... and pretended to spit at Bennett in outrage, giving away the duo's identities. The crowd went nuts.

'''Arlene Francis:''' Uh... I'm gonna pass to Bennett.\\

* The 1 September 1957 episode featured Creator/ErnieKovacs as [[https://www.youtube.com/watch?v=x0mUPzGC8hw the guest panelist]]. His penchant for cigars was well-known; in fact, he can be seen holding one in his hands during the episode. One of the contestants was Mrs. Myrl Emma Deck, whose line was... making cigars. The panel was unable to guess her occupation, leading to a great "laugh out loud while {{facepalm}}ing" reaction from Kovacs upon being told that Mrs. Deck made cigars. Other great moments from that round:

'''Steve Allen:''' Never mind... never mind all that, who just did what to who here?\\

'''John Daly:''' Um... we've had, uh, several committee meetings... we didn't need 'em. '''No.''' ''[flips over a card]'' That's, uh... oh, two down and eight to go, ''[flips over a second card]'' Mr. Cerf. I must have missed one.\\
'''Bennett Cerf:''' I'd like to ask a, a rather personal question. Uh... do Mischa Elman and Jascha Heifetz [[DreadfulMusician scream with horror at mere mention of your name?]]\\

'''Groucho Marx:''' Well, she could be even luckier, she's not going to get the answer. Now this product you manufacture, is it sold... would you be apt to find this in the living room, or the dining room, or the kitchen?\\

'''Groucho Marx:''' Well, she must make something, a woman can't make a living just being a blonde... although I've heard of a few who have! ''(gales of laughter from audience and panel)''\\

'''Dorothy Kilgallen:''' ''(trying to regain her composure)'' Miss Grable... are the men and women that you come in contact with more or less infrequently or frequently, as the case may be, are they grown-up human beings?\\

** During [[https://www.youtube.com/watch?v=tYSrDfn7z1Q the Mystery Guest segment]] on Groucho's return to the panel on the 15 November 1964 episode (featuring Anne Bancroft as the Mystery Guest), the panel had already racked up nine "No" answers, and a stumped Dorothy Kilgallen passed to Groucho, reasoning that at least he would have something funny to say. She was right:

* Creator/EliWallach's ''impressive'' falsetto when he, Anne Jackson and Alan Arkin were [[https://www.youtube.com/watch?v=XqPXZ5QaNmc the mystery guests]] on the 14 March 1965 episode (in their capacity as the entire cast of the Broadway play ''Theatre/{{Luv}}''). There's also this:

* During the Larry Blyden era, a 1973 episode saw, following a segment about a pizza maker, guest panelists Gene Rayburn and Alan Alda toss pizza dough rounds in the air ... only for one to be tossed ''so'' high it landed in the overhead lights and didn't come down. The audience was uproarious in their laughter as the cameras focused on the round being stuck high above the stage.

** Finally, at the beginning of the Mystery Guest round, John Daly is already nearly paralyzed by laughter as Groucho has his blindfold in seemingly every position on his face except over his eyes; when Claudette Colbert is brought out as the guest, Groucho's blindfold is over his nose instead of his eyes ("My eyes are prettier," he explains), and John Daly disqualifies him from questioning. Not that this stops the episode's RunningGag from appearing again:

----

** On the 20 September 1953 episode, the second guest was Elfrida Fritz of Buffalo, New York, who repaired zippers. The first questions were asked by Steve Allen, who, after establishing that a product was involved and that it was a mechanical device, was clearly thinking it was a typewriter. This led to such unintentionally hilarious questions as "Might you possibly find one or more of these in a very well-equipped office?", "Would any efficient secretary know how to operate one?", and finally, "Would it be safe to say when you're using one of these and you get to the end of a line, a bell rings?", each one greeted by increasingly loud laughter from the audience.
** On the 3 March 1957 episode, the second guest was Arch Poole of Rocky River, Ohio, who ran a diaper service. Martin Gabel established that there was a product involved, and Dorothy Kilgallen established that it was a product that could be worn by human beings, but the audience completely lost it when she then asked if anyone on the panel could wear the product, and again when, after establishing that it was something that could be worn by both sexes, she asked if Bennett could wear the product (John Daly replied, "You mean ''now?''"). Dorothy eventually deduced what the product was, but immediately passed to Bennett, who said "So, this is something that protects the wee ones from, uh..." Which is as far as he got before the audience and the panel fell about laughing ''again'' - in John Daly's case, so much so that he got up from his chair for a few seconds to regain his composure.
* UsefulNotes/RonaldReagan's appearance as the mystery guest on the 19 July 1953 episode (long before his political career began). He changes his voice with every answer, prompting one of the panelists to ask "Do you have only one head?" Then, when Dorothy Kilgallen starts to ask about ''King's Row,'' he turns to Daly and mutters "I don't like her."
* During the Steve Allen era, after the question "Is it bigger than a breadbox?" had become almost standard during the interrogation of guests, the producers used up the last few minutes of the 11 October 1953 episode by sending out Fred Burg, who made... breadboxes. When Dorothy Kilgallen, having established that Burg dealt with a product that would be found on the ground floor of a two-story home, asked, "But it's not larger than... a breadbox?", the audience fell about laughing. As a breadbox is not technically larger than itself, questioning passed to Steve Allen, who put two and two together.

* When Creator/BobHope appeared as the mystery guest on the 12 December 1954 episode, he signed in as "Music/BingCrosby." Then during the questioning, Arlene Francis, having established that he was a comedian who often gets the girl but had thinning hair, guessed "Are you Bing Crosby?" The crowd completely lost it.[[note]] When Bennett Cerf put two and two together and correctly identified Hope, John Daly revealed that Hope had also signed in as Bing Crosby when appearing as a mystery guest on the British version of ''What's My Line?'' some weeks earlier.[[/note]]
* When Creator/EdgarBergen appeared as the mystery guest on the 26 December 1954 episode, accompanied by Charlie [=McCarthy=], Charlie took offense to Bennett Cerf's question that the guest's partner, established to be "related" to the guest but not by marriage, was an animal... and pretended to spit at Bennett in outrage, giving away the duo's identities. The crowd went nuts.
* When Creator/FredAstaire is [[https://www.youtube.com/watch?v=MGafD8CTpu4&t=16m11s the mystery guest]] on the 3 April 1955 broadcast, Dorothy Kilgallen asks, "When you walk down the street do men whistle at you?" This causes Fred to assume the funniest expression, and John Daly has to lean on him, he's trying so hard to contain his laughter. Fred and John consult on how to answer the question, but both break up at the first attempt to give an answer. They finally calm down, then the audience laughs, so Fred and John lose control again. John finally gives the answer as "no", but he still chuckles as he says it.
* The guest panellist on the 29 April 1956 episode was comedian and ventriloquist Creator/PaulWinchell, who appeared with his dummy, Jerry Mahoney. The Mystery Guest for the episode was Winchell's fellow ventriloquist Creator/EdgarBergen, who appeared with one of ''his'' dummies, Mortimer Snerd (indeed, Bergen signed in using Snerd's name). When Winchell successfully identified Bergen, Mahoney inevitably tried to persuade Snerd that the two of them should leave Bergen and Winchell and form their own double act, suggesting "I could work your head, you could work mine!"
* Creator/BobHope appeared as the mystery guest again with his daughter Linda on the 24 June 1956 episode to promote the film ''That Certain Feeling''. Although Linda gave most of the answers, as her voice was less familiar to the panel than that of her father, it didn't take them long to deduce Bob's presence as the mystery guest. However, instead of identifying him, they decided to have some fun:

* The 11 November 1956 episode with Creator/JerryLewis on the panel featured a guest who was... a bit rotund. Lewis jokingly suggested that the lady made diet pills -- which turned out to be her occupation. [[note]]Incidentally, in the same episode, between segments, he turned serious to pitch for donations for the Muscular Dystrophy Association, the organization for which he'd become synonymous. After his brief monologue, it was right back to the fun.[[/note]]

* Creator/VincentPrice's appearance as the mystery guest on the 16 December 1956 episode. He ''sings'' his answers. ''In French''!
* Two words: [[http://www.youtube.com/watch?v=iXT2E9Ccc8A Salvador Dalí]]. The appearance of one of the 20th century's great surrealists on the 27 January 1957 episode could only herald one of the series' most hilariously surreal rounds, as seemingly every question the panel asked was given a "Yes" answer (as technically, Dalí had been a performer in various media, written books, and been an athlete of some sort).

* The 1 September 1957 episode featured Creator/ErnieKovacs as the guest panelist. His penchant for cigars was well-known; in fact, he can be seen holding one in his hands during the episode. One of the contestants was Mrs. Myrl Emma Deck, whose line was... making cigars. The panel was unable to guess her occupation, leading to a great "laugh out loud while [[FacePalm facepalming]]" reaction from Kovacs upon being told that Mrs. Deck made cigars. Other great moments from that round:

* When [[http://www.youtube.com/watch?v=3rZEl46Y3AE Ed Sullivan appeared as the mystery guest]] on the 14 September 1958 episode, he provided several moments of hilarity:

'''John Daly:''' What, you mean you don't like to see what's going on? ''[laughs]'' No, I would say this, I think it would be unfair to- ''[Ed Sullivan produces a caveman-like rubber mask and puts it over his head; John Daly trails off laughing]'' I didn't realise it was that hot in here![[note]] A similar mask appeared in several episodes of ''Series/TheDickVanDykeShow''.[[/note]]

''[Ed stands up in outrage]''
* When Andy Griffith was the mystery guest on the 3 May 1959 episode, we got this:
-->'''Dorothy Kilgallen:''' Do you sing?
-->'''Griffith:''' ''[putting on a VERY deep voice]'' [[LarynxDissonance BEAUTIFULLY.]]
* The mystery guest on the 21 June 1959 episode was [[Radio/TheJackBennyProgram Jack Benny]], who signed in as "Heifetz" (meaning violinist Jascha Heifetz, who made several appearances on stage, radio, and television as a straight man during Benny's own violin performances). He was in fine comic form:

* British ''Line'' chairman Eamonn Andrews filled in for John Daly on the 28 June 1959 episode, and as the panel were quizzing final guest Becky Swanzy (a salesgirl of false teeth) of Charlotte, North Carolina, he invoked ExactWords to hilarious effect:

'''Arlene Francis:''' We did say that. Did we say that she does work for a profit-making organisation?\\

* Groucho Marx, who for most of ''Line''[='s=] run was hosting ''Series/YouBetYourLife''.
** Groucho's [[http://www.youtube.com/watch?v=p6wxrLjJobM first appearance]] on the panel (September 20, 1959). As you might have guessed, HilarityEnsues. The fact that the guests include a jail warden who looks uncannily like Soviet premier Nikita Khrushchev (who, the day before the episode was recorded, was denied permission to visit Disneyland because his security could not be guaranteed) and female professional wrestler Judy "Barefoot Contessa" Grable just helps things along.
*** Groucho inevitably doesn't bother paying attention to the questions asked by Arlene Francis, Dorothy Kilgallen, and Bennett Cerf, or the answers they receive, when asking his own questions - which, though not unusual ''What's My Line?'' questions (if a guest makes a household product: "Is your product used in the kitchen?"; if the guest provides a service that involves touching clients: "Do you touch them above the waist?"), are thus complete non sequiturs in context.
---->''(so far, the panel have established only that the first guest, Henry [=McFarland=], is salaried and does not work for a profit-making organisation)''\\

*** Groucho's questions remain so surreal that some of his fellow panellists become a bit rattled:
---->''(the panel have so far established only that the guest, Judy Grable, is not connected with tourism or instruction, but works indoors)''\\

*** Finally, at the beginning of the Mystery Guest round, John Daly is already nearly paralysed by laughter as Groucho has his blindfold in seemingly every position on his face except over his eyes; when Claudette Colbert is brought out as the guest, Groucho's blindfold is over his nose instead of his eyes ("My eyes are prettier," he explains), and John Daly disqualifies him from questioning. Not that this stops the episode's RunningGag from appearing again:
---->'''Dorothy Kilgallen:''' Are you in the motion picture business?\\

'''Groucho Marx:''' ''(shakes head)'' No, that's no indication at all. Is it a woman? ''(Claudette Colbert is struggling to keep from laughing and giving herself away to the other panellists)'' Is it up to me?\\

'''Groucho Marx:''' ''(removes his [upside-down] blindfold [from below his nose])'' Well I know who it is, so I'll drop out. It's Mae West.
** During the Mystery Guest segment on Groucho's return on the 15 November 1964 episode (featuring Anne Bancroft as the Mystery Guest), the panel had already racked up nine "No" answers, and a stumped Dorothy Kilgallen passed to Groucho, reasoning that at least he would have something funny to say. She was right:

** He also appeared at least twice as a Mystery Guest ([[http://www.youtube.com/watch?v=c5MjzGyKmiw October 13, 1963]] and [[http://www.youtube.com/watch?v=kJHUres_2xU April 23, 1967]]), signing in as "Mr. + Mrs. John Smith" (1963) and "Take The Lead Out" (1967). In typical Groucho form, he seldom answered the panel's questions truthfully, requiring frequent corrections by John Daly.
* John Daly was noted for, if the panel asked a question that could be answered "yes" or "no" depending on interpretation, first conferring with the guest and then giving a convoluted speech which almost invariably raised more questions than it answered. However, when the famously verbally dextrous actor and singer Creator/DannyKaye appeared as a guest on the 5 November 1961 episode, he turned the tables on Daly by asking a ridiculously convoluted (and deliberately content-free) question:

* After stepping down as a regular, Steve Allen made a number of return appearances as both a guest on the panel and a mystery guest. On the 4 October 1964 episode with Buddy Hackett as a guest panellist, Allen was the episode's mystery guest, but things didn't quite go according to plan thanks to a verbal slip from John Daly:

* Creator/EliWallach's ''impressive'' falsetto when he, Anne Jackson and Alan Arkin were the mystery guests on the 14 March 1965 episode (in their capacity as the entire cast of the Broadway play ''Theatre/{{Luv}}''). There's also this:

* When Creator/EdWynn was the mystery guest, he answered via violin to avoid using his extremely distinctive voice. Then, when answering, he accidentally whacked himself in the cheek with it and made a goofy face, causing both John Daly and the audience to completely lose it.

* During the Larry Blyden era, a 1973 episode saw, following a segment about a pizza maker, guest panelists Gene Rayburn and Alan Alda toss pizza dough rounds in the air ... only for one to be tossed SO high it landed in the overhead lights and didn't come down. The audience was uproarious in their laughter as the cameras focused on the round being stuck high above the stage.