Likewise. I browse what's on tonight, and watch the "and next week..." or check ahead for something I want to follow, but don't watch enough to spot something good coming up -- it was pure chance I saw the first episodes of Heroes were going to be on. And mostly chance I caught #4, though I thought to check because I expected two eps.

(I'm glad it was helpful, I checked ahead to next week to make sure I wasn't going to tell you they'd gone and put half the eps on bbc3 only and you missed it :()