Hey guys, I just got an HD PVR and I'm experiencing some problems with regards to my cable signal strength. The HD channels kinda jitter from time to time and get pixely, as well as the sound stuttering. I have a number of splits in my cable setup, running about 4 tv's in the house and cable internet with 4 computers as well. I purchased a "cable booster" (http://www.thesourcecc.com/estore/Product.aspx?language=en-CA&catalog=Online&category=VideoAmplifiers&product=1501118) and connected it up to my PVR box, but it doesn't seem to be helping. Anyone have any idea what else I could do?