I chose to place my Directv Slimline receiver under the living room TV then run an HDMI splitter, one went to the transmitter and the other to the outside TV. I connected the HDMI receiver I the bedroom TV.
With that said the manufacture, IOGear makes a transmitter that has three receivers. This would solve the issue with the Directv receiver above the passages side compartment and attaching receivers to all TV.
If one uses a SWM receiver then all that needs to be used is installed coaxial cable going to all TV. They would all be HD connected and you could watch different Channels on all TVs.
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2013 Georgetown XL 378
2008 Honda CR-V