Go to settings, select TV Inputs, choose Antenna/Live TV, then 'remove antenna/live tv'. Then turn on the connected DVD player (I put a dvd in and pressed play just in case). Then go to Settings - Inputs - Add Antenna/Live TV - Scan for channels - it will ask if you need channels 3 &4 - Say Yes. Then it takes a while to get through the channels - "Finding Channels". Go to Settings again - TV Inputs - AV should now be one of the choices - I cannot remember what I chose next - may have been "Add" or "Show Input" - something positive. Then go to the HOME screen - then you should see "AV" as one of the tiles. Selecting it should show the DVD playing.