Surcy good morning. Yes we did enjoy our dinner, thanks for asking.
I put. The Directv receiver under the TV. I ran the sat. cable straight down under the belly of the slideout then I attached it to the outside of the PVC pipe that contains the cable, as in the pic. Wrapped it around to the duplex plate. I then added a duplex plate that has 2 cable connectors, since my receiver is a 2 tuner model. I have a portable HiDef antenna. With a app on my phone it takes about 10 minutes to set up.
As for the splitter I don't use it for anything other than over the air or cable. I us an HDMI transmitter/receiver to broadcast the HDMI signal to the bedroom TV and a HDMI splitter to bring the signal to the outside TV. Both the transmitter and splitter are behind the TV. Here is a picture of the transmitter.
With my Sony home theater I added 3 speakers above the the table and 2 speakers behind the couch and the subwoofer behind the chair.
If you have other ideas or questions on where to place your receiver let me know as I have other ways I would do it if I did it over again. Like if you want to keep the receive above the passenger cabinet I'll let you know that also.