I hope I understand your questions, since it was difficult to read a long paragraph of info. It you want to watch HD programming on your PC, here is the cheapest way. You can load DIRECTV2PC to your pc and watch. Here is a [link]
to a thread about it. The only downfall to this, you have to record the program you want to watch to use it. Although you can record a program that is live and watch it about 1 minute behind the live feed.
There are a couple reasonably priced ways to get HD to your remote TV's. I did it for about $100 or so with a wired solution. It runs over cat 6 with HDMI wall plates that I bought from Monoprice. Here is a [link
] to the HDMI wall plate selection starting at $17. I recommend that you buy cat 6 cable and at least 24 AWG HDMI cables that they recommend. Depending on how far you go and if you are already using the DVR's HDMI output to the local TV, you may need an HDMI powered splitter, which start at about $24 [link
Others have used a wireless HDMI setup that they said works well. I have no experience with them. Here is an example of one that Best Buy sells for $230 [link