The surround sound will solve your volume and sound quality problem.
The wires can be run using many techniques to hide the wires. Run wires through cabinets, duct work, storage compartments, behind furniture, under carpet...etc. The new flat screen LED tvs are light so they are easier to mount. Look for an HDMI distribution center so you can have flexibility to have the TVs watch the same input or different inputs.
My first thought is; why aren't the kids watching the scenery and history going by, but then I remembered I used to read comic books as I travelled with my family down the interstate.
