* HeyItsThatGuy:
** [[GilligansIsland Mrs Howell]] is a "Charm School" teacher.
** Lucy suspects new neighbor [[IDreamOfJeannie Dr Bellows]] is a terrorist.
** "The Young Fans" guest starred Janet Waldo ([[TheJetsons Judy Jetson]]) and Richard Crenna ([[{{Rambo}} Col. Trautman]]).
** In one of the Conneticut episodes Ricky and Fred [[IDreamOfJeannie dream of Jeannie]]
* HeyItsThatVoice:
** George O'Hanlon as Charley Appleby. You might not recognize his name or appearance, but as soon as he speaks you'll recognize him as the voice of [[TheJetsons George Jetson]].
** Arthur Q. Bryan as Mr. Chambers. You also might not recognize his name or appearance, but as soon as he speaks you'll recognize him as the voice of [[WesternAnimation/LooneyTunes Elmer Fudd]].
** "The Young Fans" guest starred Janet Waldo ([[TheJetsons Judy Jetson]]).
* WhatCouldHaveBeen:
** "Lucy Goes to Scotland" would have aired in full color, if not for CBS' inability to afford color film. The episode was later colorized in 2007, as a bonus feature for a complete series DVD set of ''I Love Lucy'' and ''LucyDesiComedyHour''.
** After the Hollywood Arc was over Desi suggested a SpinOff taking place in their Hollywood hotel with Bobby the Bellboy as the main character as he deals with guests (he'd be given a female costar to play his girlfriend and get him involved in hijinx ala Lucy), but nothing came of it. With this in mind, the episodes featuring Bobby could be considered a PoorlyDisguisedPilot.
** Desi Arnaz asked William Frawley and Vivian Vance if they would have liked a SpinOff after ''I Love Lucy'''s cancellation. Vance declined because of the hatred she and Frawley had for each other both on and off the set. Frawley, however, gladly agreed, sensing a very financially lucrative opportunity.
** Creator/LucilleBall originally wanted the roles of Fred and Ethel to be played by longtime friends and comic foils Gale Gordon and Bea Benaderet. However, at the time, Gordon was already committed to play bellowing principal Osgood Conklin on ''OurMissBrooks'', a role which he originated on the radio, while Benaderet was committed to play next-door neighbor Blanche Morton on ''TheBurnsAndAllenShow''. Another longtime friend of Ball's, Barbara Pepper, who later went on to play Doris Ziffel on ''GreenAcres'', was also considered to play Ethel. Unfortunately, however, by that time, Pepper had been drinking very heavily after her husband, Craig Reynolds, passed away in a tragic motorcycle accident. With Frawley, whose fondness for the bottle was legendary, already cast as Fred, Desi Arnaz felt he couldn't take the chance of having the responsibility of keeping two people in line.