Hello! Thank you for reaching out! Some of the remotes that come with our TVs are universal remotes and can cause this to happen. I would recommend turning this off by going to Home > Source > Universal Remote Setup. Do the setup again and make sure nothing is plugged into the TV and that the other TV and Xbox are both turned off. After that, it should not connect to the other devices. You can also turn off anynet+ to go to Home > Settings > System Expert Settings > Anynet+ and turn it off.
If you are still having issues I would recommend calling directly at 1 (800) 726-7864 and asking for our remote management team for further assistance.
