I have a Direct TV receiver up front and have it hooked up to an HDMI extender that sends an HDMI signal to the rear TV via a wireless connection. Works like a champ. No wires to run!
The unit consists of a transmitter and a receiver. The HDMI output from the Direct TV receiver feeds the transmitter which in turn has an HDMI output to feed the front TV. The receiver connects to the bedroom TV via HDMI.
Granted, you have to watch the same program on both TVs but that is not a problem. I only use the bedroom TV when we are shut down up front.
The front TV does not need to be on for the rear to work. To control the Direct TV receiver I just use an RF remote so I don't need to aim my remote at the Direct TV unit.
He is a link to one on Amazon. There are main different versions out there, I just picked one at random to show what I am talking about.
https://www.amazon.com/J-Tech-Digita...tronics&sr=1-3