 He remained at the Met until 1950, but also continued to appear on radio in series including "The Pet Milk Show" and "The American Album of Familiar Music".Knight had his own television series, "Felix Knight Sings", in the early 1950s, airing every Tuesday and Thursday afternoon.His other television work included appearances on "NBC Television Concert Hall" in 1948, singing Rodolfo's aria from "La bohème" on "Your Show of Shows" in April 1950, and performing Christmas hymns on a holiday edition of "Juvenile Jury" in December 1951.