How do I use HDTV as a Computer monitor

^ concur.
1 cavet, some HDTVs do not make for a good monitor especially during post and when in bios. (A) Driver is not loaded until windows has loaded (and I think the output is 640 x 480) and (B) Windows recognizes the HDTV as a generic monitor.
Ended up on my Samsung P2770 HD (Monitor/HDTV), I plugged computer one (an I5-2550k into the DVI input and computer two into the VGA (Ugh). Have a stand-a-lone DVD recorder w/cable input on the HDMI (1) input.