How bad is your picture quality? HD compression may or may not effect you because it all depends on your distance away from the vrad, which is a box your service comes from outside. The closer you are the less compression and higher speed profile you will be allowed. 19mg, 25mg, or 32mg being the highest with ongoing efforts to create a 4th and higher speed profile.  So the distance is a factor when hd compression comes into play, also the quality wiring performed on your initial install, the quality of your hd cable, and the resolution and quality of your hd tv.