Recently purchased a 55" Q8FN TV. Initial setup went fine except that the TV won't recognize our Panasonic Blu-Ray player. I have the BD player running through my Denon AVR-4100 receiver, then a single HDMI connection to the HDMI 1 port on the TV. All the other devices I have connected (Dish Network DVR, Xbox One, Roku) power up, switch to HDMI 1 and work fine, it's the BD player that won't work. It powers up, but I get no signal or picture. Also, the BD player doesn't show up in the sources menu. Also and without any input from me, the TV periodically switches to HDMI 3 for the BD player. How can I manually change the HDMI input on the TV? I looked through all the menus and couldn't find it.