Darn it, yeah, I scanned and saw them in the guide. Assumed they would work, had not gotten a chance to check. When I select a channel that was added to the list via OTA, I get a black screen with a message that says "Tuner, Off-Air 2, has been removed."
I get same here but you need an AM21 throught Directv or other place other people may know here to view those channels