It looks like the NBC series Chuck has another enemy, but it's not one that will appear on screen. Fox has decided to show an original episode of their medical drama House on Jan 11, at the same time as Chuck's first episode in its Monday timeslot (the show's season premiere is Sunday, Jan. 10). This is two weeks before the show was originally scheduled to come back with new episodes.
I'm a fan of Chuck and I'm also a fan of Hugh Laurie from his days on Britcoms (although I don't really watch House), and I could tell you right now that House will likely win in the ratings for that night. The audience for House is far more mainstream than Chuck and there are more viewers for that show overall. Chuck is more of a minority cult-type show.
However, NBC can take it as a good sign that it's a viable show since Fox is concerned about ratings for the night. Hopefully it won't get so decimated in the ratings that it will stay on for a few years and not be moved to Friday nights.