Let the hive mind of Engadget get that for you.
"What is the best wireless surround sound speaker solution? I have a home theater where running wires is just not feasible. I have my own speakers, so I don't want a system that has speakers with integrated wireless. I've done a far amount of research and have only come across a few companies that even offer a reasonable solution: KEF, Kenwood and Rocketfish. Is there anything else out there? What do you recommend? Thank you!"
You're missing one fact: these projectors aren't widescreen. Those TV's are.
So, with the TV's you linked, the pixels aren't square. You do REALLY get 768 pixels of vertical resolution when watching a widescreen source, but on the horizontal axis, you get 1024 "stretched" pixels.
On the other hand, these projectors are (as far as I can tell) 4:3 only. So, a widescreen source must be letterboxed down to less than 768 pixels high. Like I said, all the way down to 576 Standard-Def pixels.