My Hulu (and some new iTunes programs) content is suddenly only playing stereo through my front left and right speakers, not surround. It’s very frustrating. I’ve tried everything on my receiver and ATV, to no avail. I’ve changed nothing. I looked at the Hulu support page, and now ATV isn’t listed as a supported device for Dolby 5.1?! How can that be??? Anyone else having this problem?