I am just using Comcast cable direct feed.

Same on HD and SD stations.

Changed the input from video 2 to video 3 and have the same issue.

On the tuner it will go loud.

I will experiment some more tomorrow.

The Rat. M80s, VP-150, QS8s, SVS PC 20-39+, OPPO, Onkyo 703s, Harmony 880 Sony 60" SXRD HDTV