Gary Burghoff is known for originating the role of Charlie Brown in the off-Broadway musical “You’re a Good Man Charlie Brown” and better known for playing corporal Walter Eugene “Radar” O’Reilly in the film and TV series “MASH.” A little-known fact is that Gary played the drums and performed in two episodes of MASH. And, at one time, Gary lived in Delavan, Wisconsin. In the middle of this interview, I got a surprise visit from his dad.