"1, 2, 3, Go" was a 30 minute educational series telecast on NBC from 1961 to 1962 with hosts Jack Lescoulie with Richard Thomas.
The show also featured Richard Morse, only for the first episode as "The Courier", and Joseph Warren as "Thomas Jefferson"; both appearing in one episode. The theme song was: Wonder what it'll be today? What excitement is on its way? You can find out just by saying...1, 2, 3 Go.—The Professor