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 combined re-edited bridging sequences from both shows to link the seven cartoons featured in each episode. The bridging sequences would be edited further in later versions of the "Bugs Bunny/Road Runner Hour". The verse in the "This Is It" theme song "The night of nights" was retained, despite the fact the show was no longer broadcast in prime time. In 1971, "The Road Runner Show" moved to ABC, and a reconstituted half-hour "Bugs Bunny Show" aired on CBS, featuring re-edited versions of the bridging sequences and a different grouping of cartoons. In 1973, "The Bugs Bunny Show" returned to ABC