SIDEBAR - Okay, NOT every TV. I'm pretty sure 'Friends' never did an insanity episode. We are referring to most dramatic television shows that are not simple procedurals. If the show has any 'inventive' fictional elements to it, then it probably has an 'insanity' episode somewhere. Example: I'm pretty sure Law & Order never did an insanity episode, but I'm not convinced that Law & Order: SVU never did. Please correct if wrong.
"What is the insanity episode?" and "Where can I find this marvelous addition to a TV shows legacy you ask?" (if you DID ask that, then you are merely pandering to me, and I appreciate it!) Simply, the insanity episode is the installment of any television series (usually comes by the 3rd season if the show makes it that far) where the audience is left to ponder if anything we have been privy to these past years has been real, or was it all the dream of an insane mind, and our character/or characters has actually been in the looney bin the whole time. OR a lead character is committed for a short time, usually do to something happening in an episode that we cannot be sure whether or not it actually occurred.
I know what you're thinking; "That's total bull crap, every show doesn't have one of those!" Au contrare...
M*A*S*H: Final episode, "Goodbye, farewell, Amen" Hawkeye gets committed for repressing the memory of a Korean woman who smothered her baby to avoid being caught by the North Korean Army.
Buffy: The Vampire Slayer. "Normal Again" from Season 6. Buffy gets hit with some demonic venom which causes her to believe all her Vampire and demon fighting is really the imaginings of a disturbed girl in a mental hospital. Because that would make so much more sense.
The X-Files: (I searched my whole collection for the episode title, but when they're listed with synopsis like "Mulder and Scully investigate a murder" or "Mulder and Scully suspect several people may be being murdered by a dead man" or "Mulder uncovers a conspiracy" it can be hard to pin the actual episode down) - the one with the deadly hallucinogenic fungus, where Mulder and Scully find themselves completing half the episode while buried under the dirt, victim of some uber-deadly magic mind control mushroom.
House: Pretty much the whole end of Season 5 and beginning of season 6, where House hallucinates that Cuddy comes to see him in his hour of need. (note, not to be confused with the end of season 6 and start of season 7 where Cuddy actually DOES come to House in his hour of need)
Star Trek: TOS/TNG/DS9/VGR/ENT - Too many examples to count here, but the most memorable would be TNG's season 5er "Frame of Mind", DS9's "Far Beyond the Stars", VGR's "Projections", you get the idea.
LOST: Hurley spends time in a mental institution, 'nuff said.
You get the idea, examples go on and on and on. Where do these episodes come from? Usually in any dramatic series with a flair for the 'exceptional' there comes a time when the writers want to show just how hip and 'meta' they can be (i've adopted the word 'meta' for the time being, deal with it) they usually try and pull what I call the 'mind fuck' episode, where the audience is supposed to fall for the above stated premise: ie, what IF our character was really crazy all this time, and we just pulled a fast one over on the whole audience? Think when Peg Bundy lost the baby in 'Married, with Children' and they turned it all into one of Al's dreams. (Correction, I should say when Katy Segal lost the baby...) It's meant to show just how creative and 'with it' the writers are.
Personally I find the episodes rather offensive, as they always end the same way: No one was ever really insane in the first place, and its always the result of confusion/alien interference/actual dementia/demonic venom. Yes everything that we saw before actually happened, and now we can proceed knowing that some writer (I'm looking at you Brannon Braga) got to get their rocks off mining their old Psychology classes while filling up another 43 minutes of television.
So with all that being said, it brings us to last nights episode of my current favorite prime time network drama 'Lie to Me'
Lie to Me: "Funhouse"
Written by Jameal Turner
Directed by Daniel Sackheim
Synopsis: Cal investigates a man in a mental hospital who has been kept perpetually demented by muffins poised by his sister and brought to him weekly by his loving daughter. There you go, ruined the whole episode for you.
This episode, while again a B- on the overall scale of what I expect from this show, does something nice by actually bypassing the whole "was it really just dementia?" angle and showing us that Cal actually IS being looney, talking with his long dead mother and all. It follows the tenets of other 'insanity' episodes, ie creative editing where you get confused by where one scene ends and the other begins (much like being insane, I would imagine. You'd almost think those creative muthafuckas planned it that way...), laying cues in the episode long before we suspect there's some intellectual shenanigans going on, so on and so forth. By the end of it all, Cal has the solution (muffins, as said before. A solution he comes to while suffering severe dementia, I might add).
These episodes piss me off. Make angry Steve Angry. It's like Shutter Island. From the previews, I could just tell that Leo DiCaprio was in jail the whole time - sorry again to those who actually haven't seen the movie, but I just saved you 2 hours, + the time it took you to download it. Maybe its the decades of genre television i've absorbed, but the 'insanity' episodes are always so pedestrian and repetitive. Character thinks they are insane, through the course of the show something happens which makes them realize all is not well, and they snap out/are rescued from their delusions. Because if that actually worked, we wouldn't have to fund all the mental health centres that were shut down during the shift to 'societally integrated treatment' the Liberals forced on us in the '90's. (Societally integrated treatment, read: pay for it yo'selves fuckas!)
And while this episode isn't a prime example, these installments usually reek of lazy writing. If the character is insane, and everything is in their heads, that means there's no consequences to their actions. If there's no consequences to their actions, then there's no drama as there is no tension. As the audience we are supposed to be oh-so-confused by all the strange happening's a goin' on, but the truth is we're all pretty smart by now, that's why we're watching these clever shows, after all.
In fact, the only show ever to pull this effect off with any real suspense was 'House', and that's because, as this show often does, it inverted the elements. House actually WAS seeing things (through most of the season, actually) and he did think his actions didn't have consequences, when in the end they really did. Then House spent a few episodes in the nutter cage, and eventually everything worked out. But it took several EPISODES to get us there, it wasn't resolved in the span of a commercial break. So props to them for knowing what to do when you decide to make a character insane. (in all fairness, off the top of my head House is the only character on TV you could do this with legitimately. He's already fucked up enough as it is, it's pretty easy to push him over the edge...)
So yes, 'Lie to Me' has reached the 'insanity episode' benchmark. The 'flashback' and 'TV episode within a TV episode' episodes can't be far off.