 Many 1970s-era episodes have been licensed to distributors that advertise mail-order offers on late-night TV.The later shows that exist in full were stored by Carson in a bomb-proof underground salt mine outside Hutchinson, Kansas.A large amount of material from Carson's first two decades of "The Tonight Show" (1962–1982), much of it not seen since it had first aired, appeared in a half hour "clip/compilation" syndicated program known as "Carson's Comedy Classics" that aired in 1983.