As I already stated my Panny Viera has autoswitching on the HDMI 1 socket but not on the HDMI 2 socket. This is corroborated in the manual. There are also option's in the TV's set up menu for "Control by HDMI" and "Start With" which I have set to AV1 as I only have a basic SD Sky+ box.
I not trying to start an argument but it seems some TV's definately have an HDMI autoswitch option but maybe some don't. I've only had experience with the Panny in conjuction with a Sky+ SD box so I am far from an authority on the subject.
