Blondie (comic strip) was adapted into a long-running series of 28 low-budget theatrical B-features, produced by Columbia Pictures. Beginning with "Blondie" in 1938, the series lasted 12 years, through "Beware of Blondie" (1950). The two major roles were Penny Singleton as Blondie and Arthur Lake (whose first starring role was another comic strip character, Harold Teen) as Dagwood. Faithfulness to the comic strip was a major concern of the creators of the series. Little touches were added that were iconic to the strip, like the appearance of Dagwood's famous sandwiches—and the running gag of Dagwood colliding with the mailman amid a flurry of
What a Cartoon! of the original shorts produced under Fred Seibert's management for "What a Cartoon!" by Hanna-Barbera. The shorts are listed in the order that they originally aired. After "What a Cartoon!" ends its run in 1997, Fred Seibert left Hanna-Barbera in 1997 to launch Frederator Studios. In 1998, Sam Register, who was Cartoon Network's vice president at the time, took over What a Cartoon!, and two years later, turned them into "The Cartoon Cartoon Show". Register would later create "Hi Hi Puffy AmiYumi" for Cartoon Network in 2004. Two Cartoon Cartoon shorts were produced in 1998 and one in 1999. All