Complex sentence: His later appearances were on NBC's "Hunter" starring Fred Dryer, on CBS's "Knot's Landing" and "P.S. I Luv You", and on Warner Brothers's "Beverly Hills 90210" in the role of a physician.
Split into simpler sentences: His later appearances were on NBC's "Hunter", starring Fred Dryer, and CBS's "Knot's Landing". He guest starred too on Warner Brothers's "Beverly Hills 90210" in the role of a physician.