The two final titles in the series were originally produced by Harman and Ising as Silly Symphonies cartoons. Disney originally had Harman and Ising create three shorts for Disney, but when they only kept one of their three shorts, "Merbabies", the copyrights to the other two ("Pipe Dreams" and "The Little Bantamweight") were sold to MGM who released them as Happy Harmonies.
The only official home release containing a significant number of the Happy Harmonies film shorts is the Happy Harmonies Cartoon Classicslaserdisc box set. The laserdisc set was released in 1994 by MGM/UA Home Video, which predated the merger of Turner Broadcasting System with Time Warner in 1996. The four-disc set contains 17 of the 37 Happy Harmonies shorts while the remaining 25 shorts include one side of six Barney Bear cartoons, the 1939 animated short Peace on Earth and the 1940 animated short The Milky Way. In 1999, MGM paid Time Warner $225 million to end its lease of distributing content owned by Turner Entertainment prior to 1996. Copyrights and distribution rights were transferred to Warner Home Video, who still has no plans to release all thirty-seven Happy Harmonies cartoons as a full DVD set as of 2018.