Peter Jacobson

CHICAGO – There are reasons to worry about “House.” Let’s look at the symptoms. First, the temperature — the show’s ratings. They’re down nearly 50% from the season-three peak, averaging just under 10 million last year, down from closer to 13 million the year before. They’re still impressive numbers but when there were rumors of a network shift or even cancellation last year, no one was shocked.

CHICAGO – Last season of “House” opened with a divisive episode in which our beloved doctor (Hugh Laurie) spent some time away from Princeton-Plainsboro Teaching Hospital in a “Cuckoo’s Nest”-inspired tale of potential madness. Once again, the writers of one of the most successful shows of the last decade have chosen to start the new season of “House” with something a bit left-of-center in “Now What?,” premiering tonight on FOX, but this episode may have longer-lasting repercussions.