I've just bought a new Sony 28 inch WS TV and am having problems with both lack of auto-switching to an AV channel and lack of auto-switching between picture formats. When I switch on the DVD player both work fine - the TV auto-switches to the relevant AV input and also auto-switches the picture format correctly. When I switch on the Sky box the TV does neither of these things. I've tried swapping the cables round and it's still the same so it's not the cable or the AV input. I've set the Sky box to 16:9, I've tried Scart control on and off and I've tried output as RGB and as PAL but still there's no auto-detect of either the AV feed or of the broadcast picture format. Any suggestions anyone please? Or is this normal with Grundig (or other) Sky boxes?