Underdog is an American animated television series that debuted October 3, 1964, on the NBC network under the primary sponsorship of General Mills, and continued in syndication until 1973, for a run of 124 episodes. Underdog, Shoeshine Boy's heroic alter-ego, appeared whenever love interest Sweet Polly Purebred was being victimized by such villains as Simon Bar Sinister or Riff Raff. Underdog nearly always speaks in rhyme, as in, "There's no need to fear, Underdog is here!" His voice was supplied by Wally Cox.

The Invisible Man is a Sci-Fi American television series starring Vincent Ventresca, Paul Ben-Victor, Eddie Jones, Shannon Kenny and Michael McCafferty. Somewhat more successful than previous television series involving invisible secret agents, it aired from June 9, 2000 to February 1, 2002, lasting two seasons. The plot revolves around Darien Fawkes, a thief facing life imprisonment who was recruited by a low-rent spy organization and given the power of invisibility via implantation of a special "Quicksilver gland" in his head. The gland allows Fawkes to secrete a light-bending substance called "Quicksilver" from his pores and follicles. The substance quickly coats his skin, hair, nails and clothes and renders him invisible. He can consciously release the Quicksilver, which then flakes off and disintegrates. However, the Quicksilver gland was sabotaged at its creation by scientist Arnaud DeFehrn to release a neurotoxin that accumulates in the bloodstream and causes intense pain, followed by antisocial behavior and psychosis. The host requires regular doses of "counteragent" to keep him sane and healthy, which is controlled by said government agency. This series lasted for two seasons, before being cancelled due to cost issues and internal bickering between the Sci Fi Channel and its then-parent company, USA Networks. The show's first season ran concurrently in first-run syndication as well as on Sci Fi.

A team of teenagers with attitude are recruited to save Angel Grove from the evil witch, Rita Repulsa, and later, Lord Zedd, Emperor of all he sees, and their horde of monsters.

My Secret Identity was a Canadian television series starring Jerry O'Connell and Derek McGrath. Originally broadcast from October 9, 1988 – May 25, 1991 on CTV in Canada, the series also aired in syndication in the United States. The series won the 1989 International Emmy Award for Outstanding Achievement in Programming for Children and Young People.