This awesome short is included on the Warner DVD for Boom Town. The inclusion of shorts like these are reasons why I really love those old Warner DVDs from the height of the DVD era. Thankfully, these do get included on Blu-ray upgrades, but aren’t upgraded themselves.
Hollywood Hobbies is particularly interesting since it was directed by George Sidney. Curiously, some non-MGM stars are even seen in the baseball game sequence, including James Cagney (of Warner Bros.) and Tyrone Power (of 20th Century Fox). Check it out for a laugh: