What TV game show announcer was famous for shouting “Come on down” on “The Price Is Right” (NBC, 1956-65; CBS, 1972–)?

Johnny Olson was the famous TV game show announcer shouting “Come on down” on “The Price Is Right” (NBC, 1956-65; CBS, 1972).

Olson worked on the show from 1972 until his death in 1985.