Can I connect HDMI from set top box to onboard hdmi on PC to watch TV.?

[1madman]

I have been plugging my cable directly into my Hauppauge 2250 TV tuner installed in my PC
Now I must use a set top box in between. It has options for using cable or HDMI to attach to my TV tuner. My tuner has only cable input, but my motherboard has a HDMI port. Can I use a HDMI cord to connect STB to PC instead of using coaxial cable? I want to watch TV in HD 1080. I watch on my monitor connected to my graphics card by DVI.
1madman

 

[DM Gold]

the HDMI on most motherboards are not make to have the HDMI to come into the computer and a Graphics card cant do that. so i would say to do it the other way

 

[1madman]

the HDMI on most motherboards are not make to have the HDMI to come into the computer and a Graphics card cant do that. so i would say to do it the other way

Thank you DM Gold,
I seem to only get 480i using cable. How could I watch in HD? Would I need:
Tuner with HDMI input
Replace monitor with small HDTV that has HDMI to use to watch TV and use as a monitor
New graphics card with HDMI

 

[DM Gold]

i don't know what TV you have right now but that could be it. if you get a TV that can do HD that it should work.