To my knowledge, the Atlanta locals in HD are not available yet on 61.5. They were uplinked on April 2nd, 2008, but not available yet. Rumor has it that they are mirroring them on 61.5, but I have been waiting for almost 3 months for them to be made "available" (since i lost view of the 129 sat. because of a tree) . The HD locals are available on 129, but I assume that you are too far south to see 129? As far as SD locals, they are on either 61.5, 110, or 119. I do not know which, but I do know they are on one of them because I do have them in SD.
Anyone have any idea if/when the Atlanta Locals in HD will be made available on 61.5??