The Smothers Brothers' guests include folk singer/activist Pete Seeger, folk-rock singer Arlo Guthrie, pop singers Seals and Croft, folk-rock duo Clark and Marilyn Burroughs, and chimp-rock band Lancelot Link and the Evolution Revolution, plus a repeat performance of the poem The Box.
The Smothers Brothers' guests include comedic actor Jonathan Winters, singer Judy Collins, singer Glen Campbell, comedian Joey Bishop, and Bob Einstein as Officer Judy.
The Smothers Brothers guests include musician/writer/singer John Hartford, musical ensemble Delaney and Bonnie and Friends, and the Los Angeles String Quartet.
The Smothers Brothers' guests include British Invasion singer Petula Clark and South African writer/actor Kendrew Lascelles.
The Smothers Brothers' guests include actor Peter Lawford and singer/actor Mac Davis.
The Smother's Brothers' guests include actress Marlo Thomas, singer Nancy Sinatra, Amateur Hour host Ted Mack, Bobby Stevens and the Checkmates, Natalie Brown and singer Harry Nilsson.