Moving PC/TV away from cable outlet

[osterac]

Hi,
I plan to move my whole TV/PC setup. Right now it is all next to a cable outlet, but the TV is too far from the couch and it just doesn't work well. I think I'll keep the router in the same place and install a powerline network. As for the cable TV, right now everything is low def (coax output only on cable boxes) and the only thing I can think of is to get some RF modulators and some wireless transmitters. This would be fine for the TV, however I have a TV tuner card on the PC, and it needs a coax cable input - the wireless receiver would be using RCA. So could I use another RF modulator to convert from RCA back to coax? Do those things work in reverse? Would there be a noticeable loss in quality?

Of course, if you can think of a better way of doing this, I would like that too.

Don't want any visible cables, and I'm not sure how much running one would cost. It's a 2 story stucco house, FWIW. Floor is tile.

[Joe The Dude]

You can look into the HD HomeRun, made by a company called Silicondust.
Their standard model has two ATSC/QAM Tuners.
You can set it up for one tuner as QAM, one as ATSC,
or both as ATSC
or both as QAM.
Its a setting that can be changed via software; you don't have to mod it's hardware.
This version of their HDHR doesn't have the ability to record encrypted QAM.

They have another version of the Tuner, known as the HD HomeRun PRIME.
It supports Cable Cards (can unencrypt any encrypted CATV channels that you subscribe to), but you'll need a compatible DVR App, in order to use it.

Anyway, both the standard one, and the PRIME, send it's recordings over Ethernet.
In other words, you can get a Gigabit Switch, a couple of HDHR's, and set them up right next to your CATV Outlet.
Just make sure the Gigabit Switch, HDHRs, and your PC, are connected to the same network,
and that your recording PC does not use wireless Ethernet.
Wireless Ethernet is not reliable enough, nor has the bandwidth for, multiple simultaneous recordings; they'll mess up.

There's a lot more to it than this, but it's late, and I'm already half asleee.e.ee.e zzzz

[osterac]

Okay, finally replying. The HD homerun looks very interesting - I'm not clear on quite how it would all work, though. It sends the video over Ethernet, but what happens on the other side? Would I need a HTPC? The PC I have now does have a tuner card, but it is not a dedicated HTPC. Also, the cable boxes I have are what comcast calls "Digital Transport Adapters." They are tiny, and they have no removable cable cards. They do, however, require activation. I have one full size cable box in the other room that probably has a cable card, but I guess that probably doesn't help.