Throughout the 1960s and 70s, Robert Lawrence Productions co-produced several of Jim Henson's television specials, which were filmed at Lawrence's studio in Toronto, including Hey, Cinderella!, The Frog Prince, The Muppet Musicians of Bremen, and Emmet Otter’s Jug-Band Christmas. The Toronto branch also produced several Canadian TV series (including Moment of Truth and 55 North Maple), the filming of the 1964 American premiere of Karlheinz Stockhausen's Momente, and the 1971 Disney film King of the Grizzlies.
