I'm using a Sony DG710 receiver with a DirecTV H10 using a Logitech Harmony 880.
When trying to watch television, the receiver will seem to try to keep switching to the correct video source, and so when watching TV the picture will keep flicking on and off until I turn the receiver off and then power it back on which then fixes the problem.
Not sure if it is due to a power on delay which I can configure using the Harmony software.
Any suggestions on how to fix the problem? I find it odd that the problem is fixed by turning the receiver off and then on but hopefully that helps to isolate what the issue is.
Also this is using HDMI if that makes a difference.