Beginning this evening, all my HD channels, except terrestrial OTA channels have black bars. HD setup in 722k receiver is set to 1081i. 16*9. Format using dish format key * is set at normal. TV is set to normal. All local HD. .01 channels are free from black bars through receiver- they look normal. All dish channels including HD locals except those I am receiving via antenna have a black bar. The only way to fill the screen is use my TVs 1080p zoom. Can't figure out what I am doing wrong. Suggestions?