On Gilligan's Island during Gilligan's dream where he's a secret agent, Mr. Howell (who plays the Big Bad in the dream) pulls this on him. Gilligan falls for it and they struggle over Gilligan's gun as the dream ends.
The first episode of Season Three of House featured Cameron following House down a corridor, pestering him about something he didn't want to discuss. House tells her she's forgetting: he can do something now he couldn't do before... and then trails off, looking over her shoulder with a puzzled expression. As soon as she turns to check, he runs away.
Wilson does this to House in "Frozen", when House keeps pestering him about who he's dating: "Okay, but you swear not to tell anyone? It's— (dodges around House and runs)."
In another episode, Malcolm and Reese are playing the Circle Game (if you see someone's thumb and index finger in a circle below their waist, they get to punch you). Then Stevie joins in, and it turns out he's very easily distracted, as Reese manages to get him with "Hey, look, a snake!" while indoors.
Evil Harlan: You don't get it. We're evil. We don't do what we're told.
Thelma: Don't look over there.
(everyone looks, and Thelma bolts)
One sketch in the improv-comedy show Whose Line Is It Anyway? has Ryan Stiles playing a ruthless "killer" taking out the other cast-members. When he finally corners lone "survivor" Colin Mochrie, Colin pulls this trick. Ryan dopily turns and stares, and Colin, showing impressive speed, sprints off the stage to safety.
Red Dwarf... "excuse me, could I just distract you for a brief second?" The villain's response is to grunt "huh?" and turn around!
Used in The Sarah Jane Adventures, where Maria says, "Look! UNIT!" to a Sontaran. However, the Sontaran claims he looked deliberately as he knew where Maria and the others would escape to, and it would save him having to chase them.
In The IT Crowd, when Moss needs to distract a roomful of women so Roy can escape from under a desk, he looks out of a window and starts describing a builder on the scaffolding outside, "taking his shirt off, just like in ads!" Subverted as there is a shirtless builder out there, but he's not exactly sexy.
This was actually Jen's successful tactic. Moss' attempt involved literally saying something unbelievable was happening that couldn't be described, in an unconvincing tone. It fails miserably.
In Kenan & Kel, the two are about to be beaten up by a bar gang, when Kenan says, "Look, the Great Wall of China!" The entire gang, plus Kel, not only looks, but stares silently awe-struck at this nonexistent wonder.
An extended version of the cup-switching trick is carried out in Haggard wherein two characters repeatedly get one another to look behind them in order to switch who has the drugged cup. Both are well aware of what the other is doing.
Pee-wee Herman would often do this. The talking doll even says, "What's that? Made you look!" However, it was subverted in the Christmas Special: inside the Magic Screen, Magic Johnson says, "Pee-wee! Look! A polar bear!" Pee-wee responds, "Oldest trick in the book!" but looks behind anyway. Sure enough, a big, mean-looking polar bear is behind them.
In an episode of Stella, a novelist with writers block escapes with the three main characters' manuscript by shouting "Oh my gosh! a baby deer!" (when they weren't even outside):
David: Hey, you guys? She's gone!
Michael: There was no baby deer!
Michael: Do you mean the entire time she was talking about the baby deer, she was lying?
Michael: Yes. I'm afraid so...
David: She's brilliant...
Michael: I'm gonna look one more time for that baby deer...
Subverted in Jack-of-All-Trades: during a poker game with Napoleon with the Louisiana Purchase as the stakes, Nap tells Jack, "What on Earth is that?!" and when Jack makes a great show of looking intently and trying to see what it is that Napoleon saw, Napoleon slips a fourth queen into his hand. What he doesn't realize, but Jack does, is that when Jack's back was turned to Napoleon, his front was obscured from Napoleon, and Jack took the opportunity to slip a fifth jack into his own hand (he had a joker).
One recurring segment on The Colbert Report is called "Cheating Death with Dr. Stephen T. Colbert, D.F.A." and the opening graphics depict Stephen playing chess againstThe Grim Reaper. He points, yells "Look!", and moves some of the pieces around while Death isn't looking.
In Scrubs Season 2's finale (if I remember right), when Dr Cox finds out that Jordan has just had his baby (that he previously thought was someone else's), he (rightfully) tells her outright that, because she lied to him, he's not sure if they will be able to continue in a relationship. She refuses to accept this and won't stop pestering him until he takes back what he said. He manages to buy a few moments of sweet relief by starting a sentence normally, then trailing off and stating loudly "and oh my God, is that guy on fire?", then making a break for it when Jordan isn't looking.
Arthur pulls this on Merlin in one episode of Merlin so he can mix the liquids and drink the poison rather than letting Merlin do it This turned out to be how he passed the test, and saved Camelot.
Benton: You didn't really think you could fool me with a fake telephone call, did you? It's the oldest trick in the book.
The Master: I underestimated you, Sergeant. ... [glancing behind Benton] Why, Doctor! What a very timely—
[Benton turns around; the Master hits him, and he goes down cold.]
The Master: You're wrong, Sergeant Benton! That is the oldest trick in the book!
Brigadier Lethbridge-Stewart actually pulled this on the Doctor in Battlefield; when the Doctor was preparing to face Morgaine(who would very likely kill him), the Brigadier suddenly shouts, "My God, it's a flying saucer!" When the Doctor turns to look, the Brigadier punches him out, then says, "Sorry, Doctor, but I'm More Expendable Than You now!"
Later, in The Pandorica Opens, the Doctor does this himself, in his own...unique fashion.
Another Python sketch has a well-to-do household gathered in a drawing room after a murder has been committed. A Scotland Yard inspector strides in, introducing himself as Inspector Tiger. They echo his name in puzzlement and he spins around shouting "Where, where??" Later, Inspector Lookout enters, the same thing happens. Later still, Inspector There's-a-man-behind-you enters, they echo his name, and he chuckles "Oh no, I'm not falling for that one!"
In The Cosby Show, Cliff does this to Rudy during a checker game. It doesn't work. Rudy then tries it on Cliff. It works.
Saturday Night Live did a sketch that purported to show the historical origin of this trick (although, judging by the way the characters were dressed, the sketch had to be taking place in the 1920s at the very earliest). A teacher at a high-school spelling bee (Will Ferrell) loses his cards and is reduced to making up words for the contestants to spell. When they start to catch on to his deception, he points and shouts: "Hey! Look over there!" - before humorously creeping off the stage with his hands held in front of him like a praying mantis. Cue a Freeze Frame and a Lemony Narrator announcing: "That was the first time that 'Hey! Look over there!' was used to escape an embarrassing situation. And how do I know this? Well....Uh....'Hey! Look over there!' "
Used in a Mad TV sketch in which the Terminator travels back to Biblical times, shows up at the Last Supper, and shouts: "Look! Pontius Pilate at six o'clock!" so that he can shoot Judas Iscariot.
Double Subversion in Sister Sister. Tia got Tamera a date with what was initially believed to be a college kid (although it was later revealed that he was actually an elementary/middle school person, and the confusion stemmed from the fact that the school was referred to as an "academy."). Tamera then approaches Tia when telling some jokers about her having a date, then asks Tia where her date is. Tia then tells her that he's right behind her. She turns and then asks where. Tia then specifies that she has to look down when turning, to show a kid right behind her.
Tamera: Tia, where's my date? ''(oblivious to the child behind her)
Tia:(irritated) Right behind you. (pointing behind her)
(Tamera turns quickly and back)
Tia:(sighs heavily) Look 'down'.
(Tamera's face grows nervous at the implication, turns cautiously while looking down, then jumps away in shock)
Kid: Well, whaddya know?! T-wins! Looks like I've hit the jackpot! (mimicking a slot machine payout) Ka-ka-ka-ka-ka-ka-CHING!!
On Law & Order: Criminal Intent episode "Renewal", a cop was able to make the robber look by shouting "Don't come in here!" while pointing at the door behind the criminal.
While fighting with a sword-wielding intruder, Sherlock shouts, "Look!" then punches the man when he turns his head.
Star Trek: Deep Space Nine: Subverted in an interesting way. At the start of Series 3 when the Federation and Dominion have forged a treaty together, the cast decides to sabotage the treaty and find an unexpected ally in Garak, the station's resident tailor. To break Sisko out of prison, Garak, Dax and Bashir confront Eddington who's taken over station security. Dax and Bashir's challenge of him is interrupted by Garak, who is standing on Eddington's right, spotting a loose thread on Eddington's left shoulder. As Eddington turns his head to look at what Garak's pointing at, it causes him to fully expose the right side of his neck to Garak who whips out a hypospray and sedates him. The subversion? It never happened. It was a simulation the command crew was unknowingly being forced to experience by their Dominion captors.
Lampshaded in Dead Like Me when George is chasing an erstwhile thief.
"Look! A Pterodactyl!"
(George pauses to look; the thief bolts.)
George (voiceover): I can't believe I fell for that.
Firefly Mal, Zoe, and Jayne are in a bar on I day. Mal pulls this in a fight, the guy refuses to fall for it. That is OK, Zoe cold cocks him from behind.
Angel. Averted in "Epiphany" when the heroes realise this tactic won't work on a demon that literally has eyes in the back of its head.
Community - in "Regional Holiday Music", Glee Club director Mister Rad, during an angry outburst, realizing he's basically admitted killing the last year's Glee Club on stage to a good sized audience, points and shouts "Hey! Kings of Leon!" and bolts.
In Dark Angel, Max faces Alec in a cage match, and eventually goes, "Look, the ring girl took off her top!" Alec says he's not falling for it, but when Max insists, he gets a perverted look on his face and turns around. The ring girl is not topless and glares at him, then Max gives him a Groin Attack and defeats him.
In the parody thriller "Mice Laugh Softly, Charlotte", the hero, Oddish, twice disarms villains by pointing at the ceiling and saying "Look out!", then kicking their guns out of their hands while they are distracted.
The "Burglar Hides in the Library" sketch features a variation; because the burglar and the policemen pursuing him are shushed impatiently by the librarian and the other library patrons if they so much as whisper, the policemen disarm the burglar using a sign reading"Look out. There's someone behind you".