My utilities cabinet has 2 TV type connectors (sometimes one is internet) one CABLE and one SAT.
My rig has 4 TVs - each has different capabilities. All get cable/air.
The garage TV has a DVD player that can also push video / audio to the outside TV.
The outside TV also has an HDMI connection to my secondary satellite receiver.
The living room and bedroom TVs are connected via HDMI to my primary dual-tuner satelite receiver / PVR. There is a DVD player for the living room tv (I think it will also drive the bedroom tv but I've never tried it). The LR and BR equipment is all driven by a 300W MSW inverter.
The dish on a tripod connects via 3 dedicated coax cable, completely bypassing the RV wiring.
I have a PS3 for video games, streaming and Blu-ray.
All the HDMI connections are through an HDMI switch that connects anything to anything - I need a topend Logitech Harmony to configure everything.
I did all the HDMI stuff. It's unreasonable to expect the factory to do complicated Audio / Video.
Don't get me started on why they didn't install some RJ-45 ethernet ports.