I have digital cable installed at home (no hdtv offerings yet). Anyway I seem to get variable PQ on the same digital stations. To me it seems like decompression artifacts. I have a theroy that the PQ degrades during peek internet useage due to reduced bandwith available. The PQ varies from near DVD quality to just OK. Question 1, Is this typical of digital cable? Question 2, Will I get better results with a better set top box? Question 3, Will satelite tv be a major improvement in both standard and high def.? The TV is a Tosh 57HDX82 connected through Svideo.