Puzzling Evidence is a long-running, free-form radio show from KPFA, originally hosted by Bob Nelson and Puzzling Evidence (Doug Wellman). Bob left the show in the early Eighties, and Doug assumed command. The current show lineup features Puzzling Evidence, Dr. Hal Robbins, Philo Drummond, K-ROB and a varied stable of recurring guests. The Show has frequently collaborated with Negativland's Over The Edge radio show, sharing personnel, guests, time slots and so on. The Show has long been a media appendage of the Church of the Subgenius, and many varied Subgenius ministers have been guests.