The legendary comedy team of Laurel & Hardy had long since passed on by the time Hanna-Barbera obtained a license to produce animated adventures of the duo. Larry Harmon (Bozo the Clown), who earlier had been licensed to produce Popeye for King Features' television arm (and introduced the world to Filmation founders Lou Scheimer & Hal Sutherland), and Jim MacGeorge essayed the roles in more than 100 shorts, which could be packaged individually or in a 30 minute block for syndication. The two would then reprise for a Laurel & Hardy guest appearance on The New Scooby-Doo Movies, which would mark the end of the license.
I never saw these films when they first aired, and it can be assumed that either the estates of Stan Laurel & Oliver Hardy, or Harmon or co-producer David L. Wolper (Biography), holds the rights today. Here's "Mutt Rut":