Bugs Bunny as the "Rabbit Season/Duck Season" trilogy and are famous for originating the "historic" rivalry between Bugs and Daffy Duck. Jones' classic "What's Opera, Doc?" (1957), casts Bugs and Elmer Fudd in a parody of Richard Wagner's "Der Ring des Nibelungen". It was deemed "culturally significant" by the United States Library of Congress and selected for preservation in the National Film Registry in 1992, becoming the first cartoon short to receive this honor. In the fall of 1960, ABC debuted the prime-time television program "The Bugs Bunny Show". This show packaged many of the post-1948 Warners cartoons with newly animated wraparounds.
Bugs Bunny Melodies" started introducing newer characters. "Bugs Bunny Gets the Boid" (1942) shows a slight redesign of Bugs, with less-prominent front teeth and a rounder head. The character was reworked by Robert McKimson, then an animator in Clampett's unit. The redesign at first was only used in the films created by Clampett's unit, but in time it would be taken up by the other directors, with Freleng and Frank Tashlin the first. When McKimson was himself promoted to director, he created yet another version, with more slanted eyes, longer teeth and a much larger mouth. He used this version until 1949