After watching one of the latest episodes of Family Guy, I can safely say that my previous answer still stands. It's like they don't even try. If you don't understand why I'm saying this, think about this scenario.
You're watching a stand up comedian. He tells a few funny jokes at first, and you get a nice chuckle out of it. But as the show drags on, he starts repeating the same punch line about fifty times. Eventually, it gets to the point where he begins rambling, trying to make the punchline last over five minutes. Add in crappy animation, TOO MUCH FUCKING STAR WARS, characters that aren't even funny to anyone who has a sense of humor, and a thirty minute show-time, and you have yourself a typical Family Guy episodes. Now proceed to gouge your eyes out.
Also, NEW FUTURAMA EPISODES MARCH 23!