The following scenes have been removed from some TV prints:
CBS and Cartoon Network airings removed Sylvester nervously drinking coffee and smoking cigarettes simultaneously.
In addition, Cartoon Network also removed the scene where Sylvester swallows a bottle of sleeping pills.
The ABC version, in addition to the Cartoon Network cut, also shortened the scene at the end where Granny beats Sylvester with a broom.
Source: The Censored Cartoons Page