This is an in-studio radio performance from October 18, 1994 at KSCA-FM in Los Angeles, CA with host Merilee Kelly. The artwork created by John Treffeisen indicates the date as October 20th, but it's actually the 18th. "Dizz Knee Land" from this performance was officially released by KSCA on a CD (info here). In the liner notes for that disc, it specifically states the date was October 18, 1994. I'm going to have to go with that source on this one.

"Dizz Knee Land" wasn't even meant to be played... the band broke into it spontaneously after their studio time was finished. The station had already started playing music, but they quickly cut back to dada. A bit of useless trivia: the song the radio station started playing as dada continued on is "The Ugly Truth" by Matthew Sweet. So it turns out that the listeners would have had something good on the air either way. :)