The New Fred and Barney Show (1979)

S01E05 Bedrock Rocks

Two members of the renowned rock band, the Cavemen, arrive in Bedrock for a concert series. When Fred catches wind of Mr. Slate's wish to surprise his wife with tickets for her birthday, he attempts to arrange a meeting between the Cavemen and the Slates. However, when that plan falls through, Fred and Barney decide to take matters into their own hands by impersonating the band themselves.