Also, if it the TV won't change source with the remote the only reason I encountered is missing remote or the input has no signal. I run into both issues. For the no signal I found I had to use the cable TV remote to wake up the cable box and then the TV remote would work to switch inputs.
we have a blu ray already set up on our tv. when we turn it on and put a disc in it it automatically goes to correct source and plays disc. when we are done watching the movie we can't get the HDMI 3 to stop using blue ray and go back to cable. Also to make matters worse we do not have the remote button for the blu ray.

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