(from a CBS release): Morley Safer, Ed Bradley, Steve Kroft and Lesley Stahl interview Wallace in “I’m Mike Wallace: A 60 MINUTES Tribute.” The special edition of 60 MINUTES will be broadcast Sunday, May 21 (7:00-8:00 PM, ET/PT) on the CBS Television Network.
Among other things, he admits flirting with Shirley MacLaine and a suicide attempt. I don't know if there's anything in there about hosting the "Nothing but the Truth" pilot or any of his other game show experiences...but I'm betting against it.