I have 3 TVs. On 2 of them, I can move the blue box to get audio on Channel 720. The one in the bar room ,which we use the most, does not show the blue outline around any of the boxes and thus I can not move to select which audio to listen to. It was working great last night until it when it went to only 2 games. I have reset the receiver, pulled out the power cord and the HDMI cable. Nothing will fix the problem. Ant suggestions ?