For instance, the title for every episode of Friends begins with “The one with” or “The one where” (or occasionally something else along those lines). For instance, “The One Where Rachel Quits.” Obviously this is a take-off on the way people actually refer to episodes, since hardly anyone remembers more than a few titles.
Community, which takes place in a community college, names each episode as if it were a college class (e.g., “Basic Genealogy” or “Messianic Myths and Ancient Peoples”).
This one might be a stretch, but: Seinfeld. Each episode title is structured as a simple “The [noun].” Sometimes it’s “The [proper noun],” sometimes it’s “The [noun+modifier],” but a solid majority of episodes don’t even get that outlandish, and stick to the simple two-word formation. The only exception, apparently, is the 4th episode of season 1, “Male Unbonding.”
What else?
Big Bang Theory always titles episodes “The Adjective Noun,” where the noun is usually a scientic term or reference. Last night’s episode was “The Thespian Catalyst,” for example.
I swear I only know this from browsing the TV listings, but Hannah Montanah’s episode titles are take-offs on popular song titles, eg: “You Give Lunch a Bad Name”.
And just to be a little more respectable, the old Wild, Wild West show episode titles were all of the form: “The Night of…”
Family Guy had an abortive episode-naming convention. According to the DVD commentaries, the original intent was to name each episode as if it were a (fairly cheesy) old-style noir-ish detective story. So, the first four episodes are titled (apropos nothing): “Death Has a Shadow,” “I Never Met the Dead Man,” “Chitty Chitty Death Bang,” and “Mind Over Murder.”
They discontinued the practice because, they said, it was a lot of work coming up with jokes that most people would never see, let alone understand.
The original Star Trek used a lot of abstract-sounding titles that would have been improved with Friends-style naming, so that for example “Patterns of Force” would be “The One With Nazis.”
Going back, Burke’s Law episodes (while it was a cop show, not a spy show) were titled “Who Killed _____________?”
Jim Hutton Ellery Queen episodes (other than the pilot) were "The Adventure of _____________ "
The Man From U.N.C.L.Eand The Girl From U.N.C.L.E used “The __________ Affair.”
Blackadder (other than the first series) used themed episodes: Blackadder II were single words; Blackadder the Third used “___________ and _________,” where the second word shared the first few letters as the first (e.g., “Dish and Dishonesty”); Blackadder Goes Fourth used a term that began with a military rank (“Corporal Punishment”) (Except for the final one).
This isn’t consistent, but The Simpsons episode titles are usually puns off of movies, TV shows, songs, or other stuff in popular culture. For example, titles from the current season have been “Loan-a-Lisa,” “Money Bart,” “The Fool Monty,” “Donnie Fatso”, etc.
Also, this is boring, but (since season 4) Law and Order SVU always has had one-word titles (if you allow abbreviations under your definition of “one-word”).
Leverage is usually “The __________ Job” Scrubs was usually “My _________” but on episodes that were told from someone else’s point of view (not JD’s) the episodes were “His Story,” “Her Story,” or “Their Stories” CougarTown uses Tom Petty song titles
Covert Affairs used Led Zeppelin song titles. (If not for the Internet, I would not have figured this out until well into the season, because they used what I would call some fairly obscure selections early on). I just tracked down an interview with Christopher Gorham, one of the show’s stars, and he said that the idea is to use a different band each season. I’m personally rooting for R.E.M. – plenty of titles to choose from there!
I’m going to quote myself from a similar thread we had last year:
Third Rock From the Sun episodes commonly had the word “Dick” in them, referring to the name of John Lithgow’s character, Dick Solomon. Examples include “I Enjoy Being a Dick,” “You Don’t Know Dick,” “Assault With A Deadly Dick,” “Will Work For Dick.” It seems the more outrageous, the better. The writers seemed determined to see what they could get away with in terms of “Dick”-themed episode names.
“The Days and Nights of Molly Dodd:” “Here’s [something about the episode]”
“Jenny” (Jenny McCarthy’s short-lived series): "A Girl’s Gotta [do something related to the episode]
“Lou Grant” typically had one-word episode titles.
Many of the “Wagon Train” eps were just called "The [guest character of the week] Story. Gene Roddenberry’s characterization of “Star Trek” being “‘Wagon Train’ to the stars” was pretty accurate.