I noticed it on a SD Dish provided local and a HD OTA Local. I'll test it out more tonight. It was just something I causually noticed during viewing last night. Something else I noticed, yesterday afternoon when testing it I didn't see the gap on the HD channel, but I did on the SD local. However at night I saw it on both. During the day the HD Channel I tested on was HDNet, and it was a 16x9 program, at night the HD channel I tested was a local OTA channel, during a 4x3 commerical. Again, I'll run though all the scenarios tonight when I'm home.