The This Is SportsCenter ads created from the mid-90s onward are 15 or 30 seconds of sports-related parody, some bordering on comedic genius.
Any ad that featured boxing analyst and anchorman Charley Steiner. To wit:
The ad where ESPN tested their Y2K upgrades... which crashes everything, starting a mass riot throughout the headquarters and ending with a shot of Charley - with warrior makeup, his tie on his head, and carrying an old-style lantern - screaming at the camera "FOLLOW ME! FOLLOW ME TO FREEDOM!"
The ad spoofing blockbuster trades, with ESPN trading with TV show Melrose Place. ESPN gets Andrew Shue, who handles anchoring duties with skill... and Melrose gets Charley, who gets cast as the new pool boy.
The ad where a rookie anchorman "flames out" during his first day on the job (spoofing rookie athletes who turn pro too soon).
The ad of the Manning family getting a tour of the office - with Peyton and Eli poking at each other the way bored brothers do. They stop when their old man Archie gives them a silent glare...
Any ad involving mascot abuse.
Except for the one where Steve Irwin wrestles the Florida alligator mascot... it's more sad now than funny.
The mascot for Western Kentucky - basically a red blob - unable to figure out if it uses either the Men's or Women's bathroom. Rich Eisen tells the mascot, "Why don't you use the woods out back?"
The other Big Red ad shows him trying to get a ride with Brad Keselowski, but unable to fit through the opening in Keselowski's car. Keselowski suggests he get a ride with Kevin Negandhi, getting into his minivan a few spaces away.
Anchors are seen spouting gibberish, until a reveal of backstage shows the Red Sox mascot was covering for the teleprompter guy.
The ad spoofing rainouts - sprinklers go off above the anchormen, and stage crew cover their desk with a tarp.
Dan Patrick working late sees the power go off. He storms through an empty building down to the generator... where he asks bicyclist Lance Armstrong to keep pedaling on his bike to keep the generator running.
Danica Patrick having her race car towed from Dan Patrick's space. (Then again, the sign does say "Reserved for D. Patrick".)
"Honus Wagner worked for peanuts. Literally worked for peanuts!"
Albert Pujols denying he's a machine... all the while giving the audience a Terminator POV.
The clip of anchor Charley Steiner's reaction to track star Carl Lewis butchering the National Anthem...as written by Francis Scott OFF-Key!
During a 1995 edition, fill-in anchor Steve Levy is reading a story about New England Patriots cornerback Maurice Hurst suing the team for cutting him while injured (an NFL no-no) and he gets to the specific injury and says a term for an erection instead of a "bulging disc". Hilarity Ensues, as Levy struggles to finish the segment (with no help whatsoever from Keith Olbermann).
In Chris Berman's only appearance in an ad, he explains how every show airing live can lead to anything happening, while (possibly faked) bloopers ranging from Dan Patrick just slamming his head on the desk to someone parachuting into the set air.
John Anderson comments that Scott Van Pelt has been going on a streak of incredible shows, which shows a clip from a SportsCenter segment in which Van Pelt says "And A-Rod exhibits inordinate aptitude in spheriodical aviation!" Sadly, Anderson reveals that Van Pelt was using performance enhancers. We are shown FBI agents searching Van Pelt's cubicle and finding a thesaurus. He tries to flee and is tackled to the ground, shouting "UNHAND ME YOU RAPSCALLION!"