Only time Mel Blanc voiced Elmer Fudd while the original voice of Elmer Fudd Arthur Q. Bryan was still alive. As Elmer just had one line, Chuck Jones decided bringing Bryan in for that one line was redundant, so he had Blanc do it instead.
The bear playing a harp is a reference to Bea Benaderet's previous character role of "Mama Bear" in Looney Tunes and Merry Melodies "Three Bears" cartoons during the 1940s.
The ending, in which Daffy shoots himself in the head, has been edited out of syndication (although TCM airs the full cartoon uncut). It simply cuts from the last frame (involving the expensive food) to Daffy laying down on the floor where he says, "It's getting so you have to kill yourself to sell a story around here." Other versions show a frame of the outside of J.L.'s office when Daffy pulls the trigger (the audience never sees the gun or the actual shooting).