My younger days when I was working full time and overtime, and busy with so many other things, I rarely watched the news. I'd catch the local news in the evening when I was cooking or eating supper...no cable TV back then either.
Driving to and from work, I usually was listening to music on the radio, not AM stations with talk and news. It was simpler and more peaceful that way. I'm far from a news hound now, but I do watch parts of the news on various channels throughout the day, and there's not much in the way of cheerful stuff, that's for sure.
Then, like Manatee said, it's so repetitive. I don't mind hearing the story once or twice and any updates to it, but over and over and over just is a bit too much. The 24/7 news these days has to be filled with something, so I guess they have no choice but to repeat everything and add endless opinion and speculation.