Old NFO has a useful blog post showing how the mainstream media present the news, versus what's really going on. It's a good read. If anyone tells you, "But it was on the news!", that doesn't necessarily mean it was either accurate and/or truthful. Recommended.
The ones that crack me up are the severe weather reports, where a journalist tries to give the impression that he/she's in a dangerous or catastrophic situation, but the reality is that they're just pretending. Two recent examples:
Moral of the story: if you're going to fake it, make sure viewers can't spot the fakery!