I have a Panasonic Tv and use Verizon FIOS. My older roku stopped working and we bought a new one. The TV is plugged into HDMI 1 and the ROKU is connected through HDMI 2. When we try to change channels on the TV, it immediately changes to the ROKU setting ( HDMI 2). If we pull out all the plugs it will work for a day or two but then the problem comes back. We called Verizon and they insist there is nothing wrong with the set top box. Could the problem be the Roku?
Could be conflict in CEC operations when using remote.
Try disabling the "1-Touch Play" from within Roku Express if enabled.
Settings..System..Control other Devices..Disable/Uncheck 1-touch play
Thanks I think that did it. But I’ll have to see if it continues to work since each time we rebooted it worked for a day or two.