Rowan & Martin's Laugh-In is an American sketch comedy television program that ran for 140 episodes from January 22, 1968, to March 12, 1973, on NBC. It was hosted by comedians Dan Rowan and Dick Martin. Laugh-In originally aired as a one-time special on September 9, 1967 and was such a success that it was brought back as a series, replacing The Man from U.N.C.L.E. on Mondays at 8 pm (EST). The title of the show was a play on the "love-ins" or "be-ins" of the 1960s hippie culture.