One Million Years Before Lunch A plane that Scooby and the gang flies suddenly enters a time warp and they end up in the prehistoric ages. Details Casts Galleries Posters Season Lists Title One Million Years Before Lunch Genres Animation Mystery Comedy Family Kids Release Date 1982-12-11 Episode Runtime 00 Hours 30 Minutes Season Number 4 Episode Number 34 Production Companies Hanna-Barbera Productions, Ruby-Spears Enterprises Casey Kasem... Shaggy Rogers (voice)... Don Messick... Scooby-Doo / Scrappy-Doo ... Original Size (1920x1080) Original Size (1920x1080) Original Size (2000x3000) Original Size (960x1440) Original Size (1000x1426) Original Size (600x900) Original Size (600x900) Season 1 16 Episode(s) 1979-09-22 Season 2 39 Episode(s) 1980-11-08 Season 3 21 Episode(s) 1981-09-19 Season 4 39 Episode(s) 1982-09-25