Once upon a time, a smattering of new HD channels in one major metropolitan area was a huge deal. Nowadays, it's almost expected that one area or another will experience some HD expansion each week. In order to keep things nice and tidy around here, we deliver high-def expansions, market expansions and anything else dealing with HD channel growth right here. If we missed an area that you're familiar with, drop us a line in comments so everyone can catch up. The more the merrier, we say!