I had a 622 connected to a Vizio TV via HDMI 1 input. It was working fine until I unplugged the HDMI cable at the TV to try another device on that input. The other device had not worked on the HDMI 2 input on the TV when installed earlier yesterday and I wanted to see if, perhaps, that input plug was bad. Didn't work on HDMI 1 either. When I plugged my 622 cable back into HDMI 1 it also said "no signal". I think the issue may be with the TV instead of the 622 but if anyone has an idea how to get HDMI working again I'm willing to try anything. Guessing the handshake between the source and the TV isn't working and one or both need to be reset somehow. Just not sure how to do it. Thanks.