Forget to say..... about 6 years ago, we got HDTV. I surprised to see ABC, PBS and NBC have more than one channels per station. Some of my friends asked me pay TV??? I said no..... just over the air.
NBC 10-1 (HD Program) and 10-2 (24 hours weather)
ABC 6-1 (HD program), 6-2 (special TV program or replay news) and 6-3 (24 hours weather)
PBS 12-1 (HD Program) and 12-2 (Special program) - we have problem with PBS 12-1 because weak signal. Too much adjust on Antenna to find good signal.
I surprised to see few other TV Station like ION, Workship, 24 hours sports (different from ESPN from over the air.
All regular channels like ABC 6, NBC 10, PBS 12, FOX 29 are dead since Feb 2009. All old channels are belong to NTSC. NTSC is no longer programs.