The following scenes have been cut from some TV prints:
On ABC, this cartoon was majorly edited to remove several violent scenes: 1) Curt Martin shooting Bugs Bunny's carrot full of holes after Bugs mistakes the gun for a camera; 2) Curt untying the barrels of his rifle and gets blasted in the face; 3) Bugs reverses the barrel of Punkinhead Martin's gun so that Punkinhead gets blasted in the face; 4) A dazed and blackened Curt says, after he and Punkinhead had been tricked by Bugs into lighting a lighter in a shack full of explosives, "I think y'all are using too strong a fluid."; and 5) Bugs Bunny sings a verse during the square dance scene in which he bids the hillbillies to hit each other with fence posts and poke each other in the eyes.
Source: The Censored Cartoons Page