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Join Date: Jun 2001
Location: NW Houston, TX
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Contact Dennis Erskine (Erskine Group), aka the "AVS Theater Layout Service" here on the forum - they do wiring designs.
Look at the Wiring Your House wiki over at cocoontech.com, too.
Not sure what you mean by "RF" in this case, but regardless, the general answer for video distribution in the HDTV age is going to be multiple cat6 or cat5e home runs to each potential display location. 2-3 runs minimum for maximum flexibility.
Whole House Audio - home run speaker wire, looping through a switch-height keypad location, run a cat5e control wire in parallel to that location.
EDIT: You should also run at least one, perhaps two RG6 to each potential display location in addition to the Cat5e/Cat6 runs. Having both sets you up for most anything we know of.
For "key" locations and/or places impossible/impractical to retrofit - run flexible PVC conduit to an attic / basement location so that the cable-of-the-future can be added relatively easily. These conduits should be installed empty (anything you run should be outside of them - reserve for the future!). Flex conduit is the only futureproof cable.