This logo is similar in resemblance to the longtime logo used by fellow PBS member station WGBH-TV in Boston. It also happens to have been designed by the same design agency, Chermayeff and Geismar. The "PBS" text also looks similar to that of the 1971 PBS logo.
Program ID (1983-1985)
ITC Lubalin Graph Demi
Following PBS, KPBS also got a new look, using the same font.