[3] The studio closed seven months after Eisenberg's hire, and he went on to work as an assistant to Ken Harris at Warner Bros.

[2] In 1961, Eisenberg was hired at Hanna-Barbera Productions, run by former MGM cartoon producers William Hanna and Joseph Barbera.

[3] In 1977, Hanna-Barbera alumni Joe Ruby and Ken Spears started their own studio, Ruby-Spears Productions, and hired Eisenberg as producer and character designer for Fangface, The Plastic Man Comedy/Adventure Show and Thundarr the Barbarian.

[3] Eisenberg later worked as a writer, storyboard artist, and/or designer and layout artist for a number of productions at various studios, including Muppet Babies at Marvel Productions, House of Mouse at Walt Disney Television Animation and Dilbert (Idbox/Columbia TriStar Television).

Animation, including Johnny Bravo, Tom & Jerry Kids and a number of Scooby-Doo direct-to-video films.