Antenna advice for NE Atlanta (30519)

[dsullivan]

I'm looking to drop DISH Network installation. I think I'm far enough away from the Atlanta stations (30-35 miles) that I'll need a good directional antenna, but I've read that the local PBS station is out of line with the others; plus the TV Fool map shows stations all around me.

http://www.tvfool.com/?option=com_wrapp ... 99652a27a5

I have a ranch on a slab, in a heavily wooded neighborhood. No large buildings nearby, however. I have just one TV and a two-tuner DVR. Ideally, I'd use the existing cable from the dish, rather than running a new line.

I'd rather mount the antenna to the hidden south side of the roof, rather than fight the HOA again. (The dish is semi-visible, which results in a new round of nastygrams and FCC regulation interpretation fight every year or two...) I might even try an attic installation, just in case that works.

Any suggestions? It seems like this should be something I can figure out on my own, especially given the examples in this forum, but I'd prefer to get it right...

Thanks!
Dan