We were in TV for a while this month............and our AT&T reception was no better (or worse) than it ever has been. So I'd surmise that their new towers aren't online yet.
The latest target date I've seen noted was the end of Q3 this year:
http://www.poa4us.org/bulletins_file...etin201202.pdf See article beginning on p.7.
Keeping our fingers crossed.....in spite of AT&T's track record of promising but not delivering on improving their coverage in the area.
Bill