Besser/Derita radio interviews that I can document are:
1. Feb 23, 1983 on WWSP-FM, Stevens Point, WI. This was the college radio station of Univ. Of Wisconsin, Stevens Point. They did a program hosted by Dave Shmookler called "Stoogefest 83" which featured interviews with Joe Besser, as well as Emil Sitka and Larry's brother, Moe Feinberg
2. 1983 (exact air date unknown) on WCFL-AM, Chicago. They did a special, hosted by Dean Richard which had interviews with both Besser and Derita, as well as Ed Bernds. Jeff Forrester sat in as special guest in the studio
3. July 3, 1987 on WTAC, Flint, Michigan. This 2-1/2 hour Stooges special had interviews with Besser, Derita, Emil Sitka and yours truly. Jeff Forrester also sat in as a guest on this one too.
I know there were others, but these are the only ones that I can easily document the specifics.
Gary