The past season was a tumultuous one for NBC, what with the Jay Leno experience turning the primetime schedule into a whirl. The fact that Leno's ten o'clock show was a disaster resulted in NBC scrambling to fill in during the second season. Fortunately, at least one legit hit has emerged -- 'Parenthood.'

Still, as the network contemplates the future, there's really six programs that could be called on the bubble, teetering between a pick up or a cancellation. So what is the likelihood that NBC will renew these shows? Here's our take:

Which of your favorite network shows are likely to survive another season, and which are doomed? Valentine's Day seems as good a time as any to see which primetime shows are still getting some network love, which may be why the weekend provided us with three detailed breakdowns -- from Entertainment Weekly, The Wrap and The Hollywood Reporter -- of the cancellation odds for every network's primetime lineup.

Predicting which of the shows currently on the bubble are going to be spared the ax is hardly an exact science, yet what's interesting about these three lists of survival odds is how nearly unanimous they are. For instance, all three seem to think that 'Smallville''s move to TV's Friday night boneyard has all but ensured the show's survival, and that the CW is all but certain to keep the series, even though the nine-year-old show is the oldest thing on the youth-obsessed network. Conversely, everyone thinks the same network's 'Melrose Place' is doomed. Read on to see where your favorite series placed on the various bubble lists.

If you read Brad's take on The Hollywood Reporter list of endangered TV shows, you might be surprised that the 'experts' have some weak rated shows coming back for another season.

THR puts 'Community' in the safe category, giving it a 90% chance of renewal. It also put 'Chuck' in the 90% category.

Joe Adalian wrote about bubble shows on The Wrap, and he has 'Chuck' slam-dunking another renewal out of NBC. The surprises on his list was a death blow for 'Gary Unmarried' and 'Rules of Engagement.'

Really? That's not a certainty considering that 'Rules' hasn't even aired yet. It did well in the ratings last spring, enough to be a midseason renewal. And 'Gary' has performed on par with 'The New Adventures of Old Christine,' which has a good shot at being renewed.

When I was at the CW's "all-star" party tonight, I determined that I was far too old to be a CW watcher, because I recognized very few of the "stars" that were there. I mean, there were a few I recognized: Yanic Truesdale, Matt Czuchry, and Sean Gunn from Gilmore Girls (I called poor Sean "Tim" for some reason), the casts of Everybody Hates Chris and Supernatural, and Stephen Collins from 7th Heaven. But since neither Lauren Graham nor Alexis Bledel decided to show up, the only person I wanted to talk to was Kristen Bell of Veronica Mars.

I saw her walk in, fashionably late. I tried to casually approach her, but when I asked if she had a few seconds, she very politely told me that she wanted to settle in to the party, but would come find me when she's ready to do interviews. I only half-believed her, and, sure enough, she soon got swamped by reporters. Oh, I saw her a few times as I wandered the party (I tend to do that when I have no one to talk to), but she never approached. So, as I was on my way out, I saw her, coat slung over arm, talking to a reporter. I asked if she'd give me a few minutes, and she said yes. The transcript is after the jump. It's not Woodward and Bernstein, but she was just too damned cute to pass up: