Underdog Season 3 Episode 17
Episode Title: Simon Says 'Be My Valentine', Part 1
Countries:
United States,
Airing Date: February 11, 1967
Runtime:30 min
Watch Underdog Season 3 Episode 17 full movie online free in HD with English subtitles – no download needed.
also ran with Tennessee Tuxedo, Commander McBragg, the Sing-A-Long Family, Klondike Kat, Go Go Gophers, King Leonardo and His Subjects, and other cartoons. A typical 30-minute show included two episodes bracketing either two or three other cartoons.