A study of nearly 9000 Australians compared those who watched 2 hours or less of TV per day to those who watched more than 4 hours. Those watching the most had a 46% increased risk in death from all causes, and an 80% increased risk for death by cardiovascular disease. This connection stayed consistent even after adjusting for other independent risk factors.
PositiveTip: Too much sitting is bad for your health. Remember to get up and move more, and do it more often.