Sometimes I'll watch something on telly that I find interesting. The film "Starsuckers" is a recent example. During the interesting bits I forget that it could also be seen as quite depressing. Starsuckers is a film about our celebrity obsessed culture which in part added to the problem it was describing. It's not a great film but parts of it are. I suggested my girlfriend watch it. She did and found it depressing.
If you've got a boring expanse of time you wish to fill Starsuckers is one way to do it. Be warned though, you might just end up feeling a bit depressed.