Digital TV, a technological breakthrough

Back in the old days of over-the air, analog TV, we only could get a half-dozen channels that came in well and one that came in poorly.  Now thanks to the switch to digital TV we get 18-20 channels that come in poorly, break into blocks of pixels frequently, and have the audio lagging behind the video by several seconds (and no channels that come in well).  Thanks guys, a miracle of modern technology.