The film starts with a bang—literally—at the band's only US variety show appearance. On 15 September 1967, the Who appeared on the CBS show "The Smothers Brothers Comedy Hour" in Los Angeles following the end of their first US tour. They lip-synched the songs "I Can See For Miles" and "My Generation" and engaged host Tommy Smothers in some witty ad-libs before "My Generation". After the performance, the band began smashing their instruments. Moon had packed an explosive charge in his bass drum which set Townshend's hair on fire and rendered him temporarily deaf for 20 minutes, while cymbal shrapnel left a gash in Moon's arm. Townshend then took the acoustic guitar Smothers was holding and smashed it to bits on the ground.