Do any TV cards have HDMI input?

Hi all,

Longtime viewer, first time poster. Maybe I'm not asking the right question, but I can briefly explain what I'd like to do. I am building a new system and instead of buying a monitor, I'll be hooking up a new ATI Radeon HD 5750 via HDMI cable to my new Samsung 46" 6000 series LED 120Hz TV. I have a cable-company-assigned HD DVR that works fine with On-Demand shows and premium channels that I'd like to use, and it has an HDMI out.

Most of the TV tuners I see at NewEgg and elsewhere only have coax input options, but I would like to simply stream my TV content via HDMI. Or is that a bad line of thinking?

My question is: is there a PCI-e card or some affordable option of running the HDMI cable from my HD DVR box to my PC for my family and myself to watch TV the way we normally do through a window on my Windows 7 desktop (or fullscreen)? I feel like the HD DVR box does an adequate job and the interface is fine, and I like my Logitech Harmony remote we use to control all of my devices... but I'd rather not have to switch HDMI inputs frequently through the LED TV.

Any suggestions? Thanks in advance!

This might be worth checking out. Not sure if it's exactly what you are looking for. But there is no cheap TV card with HDMI input. You could run HDMI to your computer then use this http://www.hdfury.com/ to convert to component which can then be connected to your computer via this http://www.hauppauge.com/site/products/data_hdpvr.html

http://www.youtube.com/watch?v=YojTzfO6QNQ

Actually I'm not looking to record at all. Maybe I'm the only person not interested in turning my PC into a DVR or recording anything... all I really want is to view a window on my Windows 7 desktop, and that window should look like what my HDTV looks like when I'm watching a program from my cable box. I'd still like to use the cable box because of the on-demand options, the "Start Over" feature, recording, etc.

I was just wondering if I could run the HDMI-out cable from my DVR to my PC somehow (something simple). If I can't run HDMI, would just simply buying a basic TV tuner work for my purposes? I'd then run coax-out from my HDTV?