Question: W*A*L*T*E*R, starring American actor Gary Burghoff, was a 1984 pilot episode spin-off of which series in which Burghoff played Radar?
Sentence (from "Gary Burghoff"): Gary Rich Burghoff (born May 24, 1943) is an American actor, known for playing Charlie Brown in the 1967 Off-Broadway musical "You're a Good Man, Charlie Brown", and the character Corporal Walter Eugene "Radar" O'Reilly in the film "MASH", as well as the TV series.
Relevant evidence: Yes