Film historian James Welsh states that during Wallach's career, he appeared in most of the "prestige" television dramas during the "Golden Age" of the 1950s, including "Studio One, The Philco Television Playhouse, The Armstrong Circle Theatre, Playhouse 90," and "The Hallmark Hall of Fame," among others. He won the 1966–1967 Emmy Award for his role in the telefilm "The Poppy is Also a Flower." In 2006 Wallach appeared on NBC's "Studio 60 on the Sunset Strip", playing a former writer who was blacklisted in the 1950s. His character was a writer on "The Philco Comedy Hour", a show that aired on a fictional NBS network. This is a reference to "The Philco Television Playhouse", in several episodes of which Wallach actually appeared in 1955. Wallach earned a 2007 Emmy nomination for his work on the show.