But, I think the set we know was not actually recorded on August 30, 1970. John L. Wasserman's August 28, 1970 "On the Town" column in the San Francisco Chronicle --he had replaced Ralph J. Gleason in that space on June 15, 1970, when Gleason left his regular column at the Chron for a desk at Fantasy Records-- says that various bands' sets "have been taped" (1). So this material is from sometime prior to 8/28/70, and was broadcast on August 30th.
For The Record, and all that.
Wasserman, John L. 1970. On the Town: Ex-Monkee Nesmith And His New Band. San Francisco Chronicle, August 28, 1970, p. 41.