Yeah, in the 90's stuff was more graphic. We had shows like Ren and Stimpy, The Ripping Friends, and Rocko out there for kids. Then it got super clean and all FCC'd.
But now it seems to be getting more raw again. Shows like Chowder and Flapjack are both demonstrating this. Fuck, even more mainstream shows like Spongebob are pretty loose now. Look at the scene where Squidward gets a couch dropped on his toe and it graphically rips his toenail off (eps where Spongebob tries to help Squidward redecorate his house) or the scene where Spongebob blatantly gets drunk off of "ice cream" in the Spongebob Movie.
With shows like Foster's, Flapjack, & Chowder coming out cartoons are getting some life back in the.
ALSO, fun fact: Flapjack is made by the same guy who did the not picked up Adult Swim Korgoth pilot.