Jim and Pam are having a baby this week on The Office and, unfortunately that's been one of those TV conventions that tends to send shows on a downward spiral. The Office has already barely survived the marriage of two leads (another frequent show killer), so to now add a baby to the mix is just asking for shark-jumping trouble. While a drama like Friday Night Lights, which is built around familial struggles, or a series like Friends, where characters mostly forget about their kids, can sustain their quality levels postpartum, plenty of other programs haven't fared as well after the stork dropped off its little bundle (or two) of joy. Here's a look back at some of the unwelcome arrivals that put a damper on once-successful shows.

What is with the TV industry's obsession with making shows out of movies released decades ago? And why make a new show from a movie that was already turned into a halfway decent TV series 20 years ago? Did the producers of the new Parenthood not witness the debacle that was Eastwick? (Apparently not.) Sure, some films have made a positive transition to television (M*A*S*H, Stargate, Friday Night Lights and Buffy the Vampire Slayer, to name a few) but for every success story, there's a massive stinker that sucks the life out of the source material and dampens our fond memories of the cinematic original. While Parenthood might succeed (given its awesome cast), we're at least hoping that it doesn't follow the footsteps of these complete duds.

Televised sporting events are already a pretty big deal for most people, but when you factor in the event status of the Olympics or the Super Bowl or the World Series, they become juggernauts. So why is it that fictional TV shows about sports are so much less popular? The high school football drama Friday Night Lights is one of the best shows on TV, but ratings are only so-so, and it was moved from NBC to DirecTV in 2008 (it will return to NBC in April). Luckily, other sports shows are still plugging along: My Boys, about a female sportswriter, will get a fourth season this summer on TBS, and fantasy-football comedy The League will get a second on FX. And, encouragingly, new shows are still getting made: Spike recently launched college football comedy Blue Mountain State and is prepping Players, about the owners of a sports bar. But historically, sports shows tend to hover in a sparingly viewed grey zone between regular TV shows and actual sports. Here are some of the best shows about sports that have ever aired, and don't be surprised if you haven't heard of some them.

When we heard that Melissa Joan Hart and Joey Lawrence were getting their own sitcom, we thought of a few '90s family comedy stars who are even less deserving of their own shows, due to their ultra-campy acting and unforgettable awkwardness. So while we may have appreciated some of these folks back in the day, we're in no rush to see any of them again in starring TV roles soon.

News hit yesterday of The CW picking up a pilot for a reboot of the late '90s classic Le Femme Nikita. Somewhere, thousands of 30-somethings grasped their burning arms, revealing a darkening tattoo of Peta Wilson donning a pair of stylish sunglasses, because let's face it: Nikita had one hell of a cult following.

There's something about the new Fox series Human Target that makes us feel like kids again. Why does this man-of-action adventure drama, starring Mark Valley as more-than-a-bodyguard Christopher Chance, suddenly take us back to the 1980s? Could it be that the show reminds us of a bunch of adventure series that were on the air back then? The first Human Target TV show failed back in 1992 because it had missed the 1980s action-adventure boat, but maybe now nostalgia-seeking TV viewers will give it a "chance" (sorry). We compared the new Human Target to some of our favorite '80s action shows and found that they had a lot in common -- although Target still has some tricks it can learn from them.

Even though I was born in 1988, seven years after The Muppet Show ended, I was raised on Jim Henson's empire. I guess I can technically say that I literally grew up with the Muppets because I was a baby when they were Muppet Babies. The point is, the Muppet world is glorious and continues to produce wonderful content that was created 55 years ago just by keeping these characters alive (perhaps with the exception of 2005's The Muppet's Wizard of Oz). That being said, IMHO, the most underrated member of the Muppet production universe is the short-lived sketch show Muppets Tonight.

Scrubs is returning to ABC on December 1st for a 9th season, which may leave some wondering "Wasn't that show cancelled years ago?" and others somewhat excited about the impending birth of J.D. and Elliott's spawn. Another Bill Lawrence project that remains forever tucked away in the dusty corners of my memory is Clone High. Clone High was a short-lived cartoon that aired on MTV during the 2002-2003 season. Only 13 episodes exist of what I will dare to call a mini-masterpiece of the animated genre; an opus to the primetime cartoon.

Endless observations have been made over the years regarding Heather Locklear's impressive show-saving abilities, and much of that is based on some very compelling evidence. She revived Dynasty, she elevated Melrose Place from fairly entertaining trash to deliciously addictive guilty pleasure, she swooped into Spin City to lighten the ailing Michael J. Fox's workload halfway through the series and boosted ratings for a bit, and now she's returning to Melrose tomorrow night in an attempt to save that train wreck as well. She's obviously doing this out of some sense of show-saving duty, not unlike the Spider-Man of primetime soaps, but her inability to save a disaster is not unprecedented. Let's look back at the Melrose reboot-sized flops even Heather Locklear couldn't rescue.

As frequent Twitterers, we're big fans of @ShitMyDadSays, where a man who lives with his parents turns all of his father's withering comments and insults into Tweets. (Example: "Son, no one gives a shit about all the things your cell phone does. You didn't invent it, you just bought it. Anybody can do that.") So when we heard that he was getting a book deal, we were happy for him. Then, when we heard it was becoming a show on CBS, we had to scratch our heads. First of all, the swear words he uses (including the one in the frickin' title) are part of what makes it so funny, and second... it's a show about a grumpy old guy who berates his live-in adult son? How is that different from half the shows on television? We looked back at some of our favorite abusive TV dads from brilliant but cancelled shows.