I just purchased a UN55F8000 a few days ago and trying to watch a few Christmas movies with my kids and I'm getting a message on the screen that reads "Resolution not supported, change resolution of external device" message. I have a Panasonic BD60 BluRay player and it worked fine with my previous Samsung 7000 series LED. All external devices are run through my Marantz SR6005 AVR and the main HDMI (ARC) out from the SR6005 goes to the HDMI (ARC) In on the UN55F8000. I tried to get into the menu of the Panasonic BluRay player to see if I can change the resolution, but nothing came up on the TV screen.
Can anyone please shed any light on why I'm having this issue?