A sneak peek at NBC's new shows - VIDEOS

We told you yesterday about the new shows that NBC unveiled at their upfront, and now video previews of the new shows have made their way onto the web.
After the jump are previews for the new shows The Bionic Woman, Journeyman, Life, and Chuck, along with my quick notes on what I think based on these little snippets. Those legs above aren't exactly sexy. Maybe that's just a temporary state.
Here's The Bionic Woman, Jaime Summers, waking up in the hospital and freaking out over her new body:
Another clip from The Bionic Woman, with Jamie fighting an enemy - possibly an evil bionic woman? - on the top of a roof in the rain. Looks kinda cool, actually. Maybe they're going for a darker, Battlestar meets Alias vibe with this show:
Here's a clip from Journeyman, which seems to be a lot like Quantum Leap (guy going back in time and getting into adventures), but with more introspection and angst:
Here's another scene from Journeyman, with our hero trying to save a guy from being hit by a bus. Not really sure what's happening here (is the other guy a time traveler too? Can our hero sense trouble?)
Life is about a detective who spent 12 years in prison for a crime he didn't commit, and he still gets in trouble because of it:
And here's a scene from Chuck, which is about a nerdy computer guy who somehow becomes a spy. I don't really get this, since I thought the show was supposed to be a drama. It looks more comical than anything (and is that Seth Green, or an incredible reproduction?):
Obviously, you can't tell much about a show just from a 30 second clip, but what are your first impressions?

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