There are few things more "meta" than a TV show that has another TV show nestled inside it. And fan favorites like Angel, Supernatural, Babylon 5 and Futurama have all dabbled with messing with our heads.
As Seen On: Angel
"Smile Time" was a kiddie puppet show that swallowed souls. Duh. And when the vampire with a soul went to investigate, he got turned into a wee little puppet man.
As Seen On: Supernatural
Listen, I still haven't seen a single Winchester Bros. adventure, but the idea of a hokey supernatural-hunter show that features the characters within Supernatural is worth a nice slow clap.
THE ITCHY & SCRATCHY SHOW
As Seen On: The Simpsons
Taking the crazed violence of Tom and Jerry to a whole other insano level, Itchy & Scratchy has been a constant presence on The Simpsons since The Simpsons was a bit segment on The Tracy Ullman Show.
As Seen On: Lost
If you'll remember, unless you care not to, Kiele Sanchez's Nikki (of the late, lamented Nikki and Paulo) played an actress who also played a stripper who was also some kind of secret agent-detective person. And her catchphrase was, yes, "Razzle dazzle!" When Lost made a mistake, boy, did it make a mistake.
BACKTALK WITH BAXTER SARNO
As Seen On: Caprica
I can't in good conscience say that Backtalk was an interesting talk show—not that we got to see too much of it—but Oswalt did his best to channel a bit of David Letterman-meets-Jon Stewart zeal.
As Seen On: Stargate: SG1
There are no words. This is just ... perfect.
THE ADVENTURES OF CAPTAIN PROTON
As Seen On: Star Trek: Voyager
Apparently, Tom Paris liked to take to the holodeck and imagine himself as the hero of an old serial-style TV show. As you do. And bring his crewmates in with him. Again, as you do.
As Seen On: Red Dwarf
You know, it's like The Honeymooners, but with robots!
ALL MY CIRCUITS
As Seen On: Futurama
You know, it's like The Honeymooners, but with robots! And crazy-ass non-sequiturs.
REBO AND ZOOTY
As Seen On: Babylon 5
Because, naturally, Penn and Teller are perfect as interstellar comedians. There may or may not have been sarcasm in that previous sentence.