Guests (All-British performers): --Petula Clark (host) - ""This Is My Song,"" ""Don't Sleep in the Subway,"" ""Imagine"" & ""Just Say Good-Bye"" --Lynn Redgrave, Petula Clark and Noel Harrison - ""Sergeant Pepper's Lonely Hearts Club Band"" --Noel Harrison - ""Lucy in the Sky with Diamonds"" --George Sanders --Hendra & Ullett (comedy team) --The Nitwits (humorous musical group) Comedy: --A ""Camelot"" parody narrated by Petula Clark: Lynn Redgrave portrays a clumsy Queen Quinevere, George Sanders as the ""gouty"" King Arthur, and Noel Harrison as the dashing Lancelot.