Comedy Central censored the image of Muhammad from it's South Park episode. However they had the stones to air images of Bush and Jesus being defecated on.

Bareknucklepolitics.com
claims to have the
Uncensored Video. Some think it's a
fake.
Michelle Malkin has "
DO THE RIGHT THING! SHOW MOHAMMED" and "
NEW COMEDY CENTRAL LOGOS"
Little Green Footballs has
The Media Cave-In is Complete
UPDATE: - Brendan Loy the
Irish Trojan claims -
The “uncensored” Muhammad clip is fake
Muslims went on a rampage because of some relatively innocuous cartoons of the false prophet Muhammad. Claims were made that no one would ever accept such insults directed at Jesus. Well, guess what MTV has engaged in blasphemy against...
Tracked: Apr 13, 21:20
Apparently, it was a Comedy Central decision to join the "MSM Dhimmi Club" by refusing to to broadcast an image of Mohammed on their network.
Tracked: Apr 14, 08:37