Question: When was the American drama television series which Peter Horton played ole of Professor Gary Shepherd on aired 
Sentence (from "Thirtysomething"): It tells of baby boomers living in their thirties who reside in Philadelphia, Pennsylvania, and examines how this group of friends learn to negotiate their prior involvement with the early 1970s counterculture as young adults, in contrast to the yuppie lifestyle which .
Relevant evidence: No