Rowan & Martin's Laugh-In producer mollified him, but had announcer Gary Owens read Johnson's credit as a separate sentence: "Starring Dan Rowan and Dick Martin! And Arte Johnson! With Ruth Buzzi ..." This maneuver gave Johnson star billing, but made it sound like he was still part of the ensemble cast. Johnson left the show after the 1970–71 season. Henry Gibson also departed after the 1970–71 season. Johnson and he were replaced by former "Hogan's Heroes" stars Richard Dawson and Larry Hovis, both of whom had appeared occasionally in the first season. However, the loss of Johnson's many popular characters caused ratings to drop
The Dean Martin Show Thursday night time slot, the network and Martin's production crew created original summer programming (without Martin) to hold his usual weekly audience. Rowan and Martin hosted the first. Dean Martin's 1966 summer series proved so successful that two seasons later it spawned one of television's most memorable series, "Rowan and Martin's Laugh-In". From July to September 1967, the summer show was co-hosted by Martin's daughter Gail Martin, Vic Damone and Carol Lawrence. In 1968, Martin's staff came up with a new format: a salute to the 1930s, with a variety show performed as if television existed at that time. Producer