Hypothetical situation: You're a morning show anchor. As you tease your next guest before a commercial break, said guest crawls on set on his hands and knees and whinnies like a horse. What, pray tell, do you do?

If you're 'Today' (weekdays, 7AM on NBC) veteran and consummate professional Matt Lauer, you get on that horse and ride (straight-faced, while finishing your line). That's actually what happened Thursday morning when Jim Carrey appeared on the show to promote his new film, 'Mr. Popper's Penguins.'

As Lauer was introducing the interview, Carrey came out a little early with horse routine (it kills with the under-5 set). Lauer didn't even bat an eye -- or stop his introduction -- as he mounted Carrey. "Come on, little Matty! Who's a cowboy?" Carrey encouraged as the two made their way across the studio floor.

Jim Carrey proved that you don't have to be original to be funny (or awkward) on 'The Late Show With David Letterman' (Weeknights, 11:35PM ET on CBS).

Making the rounds to promote his new flick 'Mr. Popper's Penguins,' Carrey dropped by 'Letterman' to chat up the family comedy and to offer his best Tom Hanks impersonation.

Carrey recreated one of Hanks' more memorable visits to the 'Late Show' note-by-note, scream-by-scream, and gyration-by-gyration by retelling Hank's story involving an unfortunate skunk spraying.

We learned a few new tidbits about perky starlet Selena Gomez thanks to a visit from Jim Carrey to 'The Tonight Show with Jay Leno' (Weeknights, 11:35PM ET on NBC).

Couched between Leno and Carrey, Gomez chatted about her rise to fame and her, er, friendship with Justin Bieber.

With the 'Mr. Popper's Penguins' star butting in on her interview every few minutes, Gomez revealed that her favorite Jim Carrey movie is 'Eternal Sunshine of the Spotless Mind' (classy pick, btw, Miss Gomez) and, even though her star is rising, she's not going to let Hollywood turn her into an insecure, image-obsessed headcase who tosses her cookies before photo shoots.

['The Office' - 'Search Committee']

Right off the bat, let me give this caveat to my review: Going in, I knew that this was going to be a very difficult episode for the writers of 'The Office' to pull off.

The first degree of difficulty was that the episode was an hour, which is not something that this show has excelled at in the past. The second degree of difficulty was the multitude of guest stars -- as candidates -- parading through Dunder Mifflin Scranton, each with their own character flaws on display.

But the third degree of difficulty is that, without some sort of manager to kiss up to or hate, the atmosphere around the show feels rudderless. It's probably the reason why the episodes in which Deangelo and Dwight were the boss more or less worked, whereas this episode and Michael-less stories from earlier this year didn't.

There was a story here -- the search for a new manager -- and you have a pretty good idea who the most viable candidates for the job are by the end of the episode. But in a lot of ways, this felt like a series of sketches in search of a plot.

When Jim Carrey visited 'Inside the Actors Studio' (Mon., 8PM ET on BRVO), host James Lipton persuaded the putty-faced actor to resurrect one of his most beloved characters from his days on 'In Living Color' -- Fire Marshal Bill. Carrey curled under his upper lip, cocked his head back and let out a Marshal Bill cackle.

As Lipton attempted to interview him, he poured water from his mug in a circle around his feet. "It's a firewall," he explained. "If the flames wanta get to me, there gonna have to leap that moat!" After the bit ended, Carrey aggressively massaged his face back into normalcy.

Another week, another 'Teen Mom' in legal trouble.

According to the Daily Mail, 'Teen Mom 2' star Jenelle Evans was arrested in October for drug possession and breaking and entering. Evans and her boyfriend allegedly broke into a vacant home and were caught with marajuana and a metal pipe. The couple are due in court today.

The paper also reported that former '16 and Pregnant' star Evans signed over primary custody of her son to her mother in June. Promos for the upcoming 'Teen Mom 2,' which premieres tonight, show Evans' mother threatening to sue for custody.

In other TV news ...

• Salma Hayek is developing a 'Wicked' miniseries. The program will be based on the bestselling book, 'Wicked: The Life and Times of the Wicked Witch of the West' and not the popular musical. [Entertainment Weekly]

• Piers Morgan has some big name guests lined up after Oprah appears on the first episode of his new CNN show. Other early guests on 'Piers Morgan Tonight,' which premieres next week, will be Howard Stern, Condoleezza Rice, Ricky Gervais, George Clooney, Rudy Giuliani, Mitt Romney, Kid Rock, Rod Stewart, Kim and Kourtney Kardashian, and Donald and Melania Trump. [NY Mag]

• David E. Kelley's 'Wonder Woman' series is a no-go. Bad timing and an expensive licensing fee are reportedly to blame. [Deadline]

Jim Carrey remained consistently goofy in his return to 'Saturday Night Live' (Sat. 11:30PM on NBC) after fifteen years. Despite being 48 years old now, Carrey showed every bit of that rubbery manic personality that made him a fan favorite all those years ago on 'In Living Color.'

In a send-up of the dark ballet film 'Black Swan,' Carrey squared off against cast member Nasim Pedrad for the role of the Snow Queen. When it came down to a direct competition between them, we couldn't help but be reminded of the Chippendales showdown between Patrick Swayze and Chris Farley.

Like in that sketch, Pedrad proved capable and graceful as a ballerina, while Carrey was everything you'd expect from him in tights and a tutu -- a trainwreck. But it wasn't his lack of grace that ultimately did him in and awarded Pedrad the position. It was his failure to fully mask his gender.

['Saturday Night Live' - 'Season 36, Episode 11']

Welcome back, everyone! Let's hope the folks at 'Saturday Night Live' all made resolutions to be hilarious, as their choice of host seems to indicate that they have. It's odd to think that there might be an entire generation of people who look at Jim Carrey and think 'The Number 23' rather than 'Ace Ventura: Pet Detective.' OK, no one thinks of 'The Number 23' considering I just referenced it for the first time in three years... twice. But there was a time when no one was funnier.

Carrey still has the Kaufmanesque comedic chops, doing interviews like this one, but I'm hoping he hops into the comedic time machine to tap into some of that old school 'In Living Color' sketch swagger that made him a star in the first place.

Jim Carrey's back hosting 'Saturday Night Live' this weekend, as we're reminded in these promos the comedian shot with 'SNL' cast member Jason Sudekis. There's also a long look at Jim Carrey's back -- as in the other side of his suit-clad torso -- in the minute-long clip.

Bonus: Old school, crazy face-making Carrey makes an appearance. "I'll be using a mixture of sound, movement and funny faces to beguile the audience," he tells Sudekis. Sweet.

The Black Keys are the musical guest. Watch the promo for tomorrow night's show after the jump.

Now that 2011 is a week old, many people have already either broken or shelved their New Year's Resolutions. You know what we're talking about: you've stopped going to the gym, and you've drowned your guilt in a sleeve or two of Fig Newtons. We understand; we've all been there.

But it seems that some prominent daytime hosts -- and one very funny late night guest -- are determined to make sure their viewers are sticking to those resolutions, or just whatever exercise program they've set up for themselves.

Let's start with Ellen DeGeneres. Today on her nationally-syndicated talk show, she's conducting the entire show from a recumbent bike, and guests Ryan Gossling and Camille Grammer joined her.

Leave it to Jim Carrey to make an interview memorable. On 'Late Night' (Weeknights, 12:37AM on NBC), he did the entire interview while running on a treadmill. Well, except for one short moment when he had to take a potty break. On the stage.

It was part of a conversation that oddly steered from talking about Carrey's upcoming hosting gig on 'Saturday Night Live' into the realm of aging and how that affects a man's ability to urinate cleanly. "There's always a little extra," he explained.

After mimicking urinating into a cup, Carrey asked Jimmy Fallon for a Kleenex. "You gotta dab it," he explained, and then tried to get the audience to back him on this. "How many guys are dabbing at this point?" he asked to a modest response.

Eric Braeden's got some fighting words for Neil Patrick Harris.

"If he is a worthy adversary, he'd better not cross my path," the actor told Entertainment Weekly after Harris called him a "d-bag" on Twitter earlier today.

Harris backtracked shortly after his statement, which he made in reaction to Braeden backing out of a guest spot at the last minute. "Now I feel bad for the D-bag comment. Don't know the guy personally. I'm just fiercely protective of our show," he wrote.

Harris shouldn't get too worried, though, because Braeden is willing to forgive and forget. "I will let bygones be bygones," he said to EW.

In other TV news ...

• 'The Big Bang Theory' star Kunal Nayyar is the last of the cast to get a raise. The actor will now earn $75,000 per episode, up from the $25,000 he was previously making. [Deadline]

• The inevitable has finally occurred: 'The Good Guys' is officially over. Fox confirmed to the Dallas Film Commission that the show has officially been canceled. [Unfair Park]

• Jim Carrey will host 'Saturday Night Live' in January, the first show of the new year. The Black Keys will be the musical guests on the Jan. 8 episode. [The Wrap]

Singing is big these days. Well, actually, singing has always been kind of "big," since it's a universal human activity dating back to the start of recorded time. But singing on TV is currently hip, due to the success of 'Glee,' and other shows; shows like, well ... okay -- basically it's just because of 'Glee.'

On the new 'Late Show' (weeknights, 11:35PM ET on CBS), comedian Jim Carrey tried branching out into a vocal career, with mixed results. "I've been tryin' to learn how to sing!" he said. "'Cause it's a sensation!" Next, the comic launched into a rendition of the classic 80s song 'Take on Me.'

Jim screeched such lyrics as "I'll be coming for your love -- okay?" But it was definitely not okay -- as David Letterman's horrified reaction showed. Dave soon had another reason to back away in fear. By the end of the song, Carrey's off-key vocal stylings caused a coffee mug to shatter (sort of).

While on the promotional trail for her seventh book, 'Love Lust & Faking It,' Jenny McCarthy stopped by 'The Early Show' (weekdays, 7AM ET on CBS) and blamed Facebook for contributing to divorce, and discussed her first boyfriend since breaking up with Jim Carrey.

Twenty years ago, on April 15, 1990, 'In Living Color,' the brash, outspoken sketch comedy show created by Keenan Ivory Wayans, premiered and subsequently changed the rules of sketch comedy. In its skewering of pop culture and satirizing of race-based issues, the mostly black cast combined trenchant lampooning (Michael Jackson, Mike Tyson) with original characters (Homey D. Clown, Fire Marshal Bill) to create a show that remains groundbreaking to this day.

Just as notable, the show became a launching pad for everyone from Jim Carrey and Jamie Foxx to then-choreographer Rosie Perez and Jennifer Lopez (the latter earning her first high-profile job as one of the show's "Fly Girls").

To commemorate the anniversary, we take a look back at some of the best musical parodies the show had to offer. And good luck not getting nostalgic -- or rueful -- of the '90s if you remember these.