Tonight, Jon Stewart returned from vacation with a segment about the revolution in Egypt—or, more specifically, the media's reaction to it. From those trying to credit Twitter, to Fox News' post-revolution fear-mongering, and more, nobody was safe.

After Chris Brown fist-pumped his way around the Studio 8H stage on tonight's Saturday Night Live, an otherwise lagging Weekend Update segment was brought to life by Stefon, Bill Hader's hilariously lovable, perpetually partied out club kid and "City Correspondent."

On last night's Real Time, Arianna Huffington dropped by via satellite for an interview with Bill Maher. Unsurprisingly, the Huffington Post's buyout by AOL dominated the conversation. Well, that and some playful misogyny. Oh, and a heavy Greek accent, obviously.

Thousands of Fort Wayne, Indiana residents have voted in an online poll to name a county center after former mayor Harry Baals, and yes, that IS his real name.

Tonight, Anderson Cooper—fresh from his headline-grabbing Egypt trip—stopped by the Late Show to chat with David Letterman about being beaten up by an angry, pro-Mubarak mob. "I don't recommend it," said Cooper. Neither do we. Leave Andy alone!

Tonight, Conan O'Brien welcomed 50 Cent as a guest on Conan. A major topic of conversation was 50's Twitter account, which the rapper admitted gets quite dirty at night. Then, he told a confusing story about penises/balls (I think).

Dave Attell goes from peeing his pants during a fight to sitting on a cucumber in just two minutes.

For the New Pornographers' latest video for their single "Moves," the band enlisted the help of many funny faces: Paul Rudd, Bill Hader, John Hodgman, Donald Glover, John Oliver, Wyatt Cenac, Horatio Sans, Todd Barry... the list goes on.

Dana Carvey hosted tonight's Saturday Night Live. There was some old (Wayne's World, "Church Lady"), some new (Justin Bieber cameos), and a sh*tload of WTF, courtesy musical guest Linkin Park. Their second performance? Jaw-droppingly horrible—and just plain weird.

On tonight's Late Show, Domestic Diva Martha Stewart made some Superbowl treats with David Letterman. One problem: all Letterman wanted to do was bring up Stewart's stint in the slammer. She was not pleased—but she did get revenge!

This week, news that Bill O'Reilly had issued a challenge to atheists to explain how the moon got here—after being told that it, not God, controls the tides—was laughed at by many. Tonight, Stephen Colbert joined the chorus.

At the beginning of tonight's Daily Show, something seemed different. Oh, yeah: Justin Bieber was in Jon Stewart's seat! Huh. As it turns out, they'd switch bodies—or something—and had to act on a spell to make things right.

On tonight's 30 Rock, a fake rumor that Liz was pregnant started circulating. (In reality, though, she was just covering for Avery, who needed to secure a promotion.) How'd everyone find out? Why, from Nightly News' Brian Williams, of course!

Tonight, Jon Stewart broke down the latest developments (well, as of this afternoon) in the Egypt situation, from President Hosni Mubarak's defiant speech, to the recent outbreak of violence by pro-Mubarak thugs, to the attack on Anderson Cooper, and more!

Leighton Meester, star of upcoming dorm-horror film The Roommate, sends out this PSA of appropriate roommate etiquette. The number one rule for cohabitation? Don't touch your roomie's shit.

Here's a trailer for the Judd Apatow-produced comedy Bridesmaids, a movie that may finally solve that age-old debate about whether women, the ones with the vaginae, can be funny or not. Judging from this trailer, it looks like they can!

On tonight's Daily Show, Jon Stewart began to respond to Sarah Palin's idiotic response to President Obama's State of the Union address. As he did, though, Stewart realized—and then explained with evidence—that Palin may be... a Russian spy?!

In this parody-that-could-be-real promo for TLC—"The Learning Channel. For some reason."—the increasingly sensationalistic (and just plain weird) network's new lineup is unveiled. What's on tap? Well, there's Little People, Tricky Fridge; The Divorce Horse; and much more!

During host Jesse Eisenberg's monologue on tonight's Saturday Night Live, the Social Network star was surprised on stage by Andy Samberg-as-Mark Zuckerberg. But that wasn't all—shortly thereafter, the *real* Mark Zuckerberg showed up... and it was incredibly awkward!

On last night's Real Time—during what amounted to a heated panel discussion—Bill Maher couldn't resist making comment on Michele Bachmann's bizarre post-State of the Union response. What was CNN thinking as Bachmann spoke/avoided eye contact? Maher provided captions.