Their performance of 'Along Comes Mary' on The Smothers Brothers Comedy Hour, April 9 1967 (assuming from ctva.biz/US/MusicVariety/SmothersBrothersComedyHour_1967-70.htm) This one has the famous 'E' exclamation mark on it as I've seen on many other Smothers Brothers uploads. Didn't see this one on here so I decided to upload it. It appears to have been taped off the TV when the show was re-aired during the 90s or 2000s perhaps and distributed through bootleg DVDs.