There's an extreme disconnect here. Jauntor is spot on, and knows this stuff inside and out.
It would be completely idiotic to wire a house without RG-6. RG-6 is the standard, so everything video is, and will continue to be, designed around RG-6. OTA requires RG-6, satellite requires RG-6, cable requires RG-6. Sure, there are ways to move tuners around, but they may or may not exist in the future. Coax is the common denominator that everyone has, so you want to be like everyone else in that regard. Most houses do not have CAT-5 or better cable, so even networking for cable and FIOS is run through coax (although that can be run via Ethernet instead). However, FIOS, as a QAM-based TV system, requires coax.
Coax signals cannot go across CAT-X cable, and will never be able to. The RF signals and a stream that is derived by de-modulating an RF signal are two totally different things entirely, as some systems require the de-modulation to happen at the point of end use, or require networking over coax.
drandersoninc, if you want to be super cheap, run one RG-6 to each room and call it a day. You will be like most other houses in the US that have RG-6 and a bunch of useless phone wire that's often daisy-chained and/or low-spec (CAT-3 or worse), and thus is of no use for networking. If you want to do it right, then you add the CAT cable. A minimal setup would be 1 RG and 1CAT per room, so that you have service from your TV provider, and gigabit ethernet. Then from there, you could add more RG or CAT cables. The ideal but not overbuilt setup these days is probably 2 and 2 RG and CAT. That could theoretically accommodate gigabit ethernet, HDBaseT, OTA, and either cable or satellite.
Using "satellite-compatible" RG-6 is probably a good idea, although DirecTV installs on all sorts of crap, and it works fine. The SWiM/ DECA system is pretty robust, and will work in practice over any type of RG-6.