Les Grands Détectives Details Casts Galleries Posters Season Lists Title Les Grands Détectives Genres Crime Drama Mystery First Air Date 1975-04-21 Last Air Date 1975-05-26 Episode Runtime 00 Hours 50 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 6 Runtime 50 Production Companies Mars International Productions, Technisonor, Antenne 2 Original Size (1280x720) Original Size (501x750) Original Size (680x1000) Season 1 6 Episode(s) 1975-04-21