TV doesn't make you relax, it agitates you to no end.
I tend to live overseas every other year or so, and whenever I come back to the U.S. I'm surprised by the abnormal, loud booming voice of the announcers and crass sensationalism. Why are BBC anchors so human, calm and collected, while CNNers come off as very emotionally involved, and almost nudging you to participate and mirror their reactions?
I use the computer for that rather than TV, but still, killing time is killing time.