I've just discovered that you can find this show on DVD.
THE BIG T.N.T. SHOW 1966 U.S. film. Phil Spector produced the Big TNT Show which was a follow-up to the TAMI Show. The Ronettes, Bo Diddley, The Byrds, Donovan, Joan Baez (backed by Phil Spector on piano), Petula Clark, The Lovin' Spoonful, Ray Charles, Ike and Tina Turner. Others. Roger Miller calls a kid in the audience a "hippie." In the audience is Sky Saxon (the Seeds) and Frank Zappa. David McCallum (Ilya Kuryakin from "Man from U.N.C.L.E.") introduces the show. 1960s rock & roll! Note: This is the complete Big TNT Show show, not an edited version hosted by Chuck Berry. (IMDB)