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.
The Bugs Bunny Show for two seasons, only for CBS to re-acquire both shows and bring back "The Bugs Bunny/Road Runner Hour" in 1975. In 1976, Sylvester and Tweety were featured in their own "Sylvester and Tweety Show" for one year, necessitating the removal of most of the Tweety and/or Sylvester cartoons on "Bugs Bunny/Road Runner" that season. Also that year, a weekly half-hour prime-time edition of "The Bugs Bunny/Road Runner Show" briefly aired on CBS' Tuesday night schedule from April through June. "The Bugs Bunny/Road Runner Hour" became "The Bugs Bunny/Road Runner Show" in November 1977 after CBS added another half-hour to the