From the 1974 Toronto Comic Convention:
This interview with Vaughn Bode was filmed circa 1974. Vaughn was an influential underground cartoonist who created "Cheech Wizard" and many other characters. His artwork was also a major influence on the New York graffiti scene. Check out xrayultra's YouTube channel for more videos about Vaughn Bode!
Below: an ad from MARVEL PREVIEW #14: