Weird issue I can't figure out

I'm having an odd problem that I can't figure out what would cause it.

First, I'm not an A/V expert, so this may be (hopefully) obvious and an easy fix.

I posted here a month or so ago about splitting my Tivo signal into 2 rooms. I took some advice given and everything seems to work great (went with basic HDMI splitter and and RF remote relay).

Now the weird part is that when I use the DVD player in the LR (main set up is there, including Tivo) the DVD remote is turning on the TV in the other room and if I turn that TV off (even with the button on the TV) it turns the DVD player off in the LR. What is baffling me is that the DVD in LR is not connected to the new set up in any direct way.

Any help, explanation and especially solution would be greatly appreciated...

Thanks!

Thanks...I turned it off on the BR TV (secondary one) and this seems to have worked.

Could you tell me what this function is for and also why it would be effected by a device that is not even directly hooked up to it. DVD goes only to TV #1. Tivo is split to TV #1 and #2. Trying to understand...

Thanks again!