Does anyone have experience with running RG6 for HDTV? I was checking Belden's website and saw that there are roughly 3 grades of RG6: 1 for CATV, 1 for satellite, and 1 for HDTV. It looks like the difference between them is that they are sweep tested up to 1GHZ, 2GHZ, and 3GHZ, respectively. Has anyone run into this, where they have installed the lesser of the 3 and later tried to use it for HDTV? If so, how did it work? I recently cabled a house, and did not know there was a difference in RG6 until after the job was complete.