What is the computer monitor resolution of 1280x1024 compared to TV resolution?

i am getiing a digital box from IO and i have a tc card on my computer. I am planning on hooking up the box to my computer. But i want to know if i put on the hd channels that are provided by the tv company will i see the shows in hd like 720p or 1080p or i resolution on my 1280x1024 resolution monitor?What is the computer monitor resolution of 1280x1024 compared to TV resolution?
When you use a tuner capture card, the only HD channels you can tune into are the local channels (ABC, CBS, NBC, Fox, PBS, etc.).



You will NOT be able to tune into any of the QAM-encrypted pay HD channels like Discovery HD, HBO HD, CNN HD, etc. No computer tuner/capture card can decode QAM due to copyright restrictions.



Those unencrypted local channels you can see will be broadcast in 1080i, but your video card will shrink it down to 720p because that's the only HD resolution your 1280x1024 monitor is capable of displaying.



As far as the pay channels are concerned, with a tuner/capture card you can only tune into the standard-definition (i.e. 480i low-definition) versions of those channels.