Hauppage 2250 HDTV tuner is the better HDTV tuner than any ATI Tuner today. I had a lot of issues with ATI HDTV tuner. This is a separate pcie TV Tuner.
It is capable of recording 1080 HDTV shows.
I'm not sure what your hardware is. Normally i keep the TV tuner separate from the video card. When i change my video card (which i do 1x 8 months) i don't change the TV tuner.