The Ruby-Spears studio closed in 1996 after 19 years of operation. As of now, most of the original pre-1991 Ruby-Spears Productions library is now held by Warner Bros., through Hanna-Barbera, Warner Bros. Animation and Warner Bros. Family Entertainment. The only pre-1991 Ruby-Spears Productions library not owned by Warner Bros. is Rambo: The Force of Freedom, which is owned and distributed by StudioCanal which also own and distribute the first three live-action Rambo films. As of 2019, it is unclear where Ruby-Spears' post-1991 library is held; two exceptions are the Mega Man series, which is at least partially owned by WildBrain, and Skysurfer Strike Force, which is owned by Invincible Entertainment Group, along with most of the Bohbot Entertainment library. The founders both died in 2020 within three months of each other – Joe Ruby died of natural causes on August 26 at the age of 87 and Ken Spears died of complications from Lewy body dementia on November 6 at age 82. See also List of Ruby-Spears productions References 1977 establishments in California 1996 disestablishments in California American companies established in 1977 American companies disestablished in 1996 American animation studios Italian animation studios Animation duos Mass media companies established in 1977 Mass media companies disestablished in 1996 Film production companies of the United States Television production companies of the United States Companies based in Burbank, California Taft Broadcasting Hanna-Barbera 1981 mergers and acquisitions Filmways Turner Broadcasting System