Allan Blye, a television comedy writer and producer who helped cement the Smothers Brothers’ reputation for irreverence in the late 1960s and later collaborated with Bob Einstein to create the hapless daredevil character Super Dave Osborne, died on Oct. 4 at his home in Palm Desert, Calif. He was 87.

His wife, Rita Blye, confirmed the death. She said he had been in hospice care for Parkinson’s disease.

Mr. Blye was a writer and singer on variety shows in Canada when he received a surprise call in 1967 from Tom Smothers asking him to join the writing staff of the series that he and his and his brother, Dick, would be hosting on CBS.

“I couldn’t believe it was Tom Smothers,” Mr. Blye said in an interview with the Television Academy in 2019. “I thought it was Rich Little doing an impression of Tom Smothers.”

“The Smothers Brothers Comedy Hour” was unlike any other variety show. The brothers were renowned as a comical folk-singing duo: Tom played the naïve, guitar-playing buffoon, and Dick, who played the double bass, was the wise straight man. They had creative control of the series, which emboldened them and their writers to be more outspoken as they addressed politics, the Vietnam War, religion and civil rights — and their forthrightness during a divisive era increasingly angered some viewers, CBS censors, some of the network’s affiliates and conservative groups.