Imagine being the person who asks, “What the hell happened to Blood, Sweat and Tears?” Beside that documentary, John Scheinfeld, who is from Milwaukee, masterminded films like “The U.S. Vs. John Lennon,” “Reinventing Elvis: The ’68 Comeback” and “Who is Harry Nilsson and Why is Everybody Talking About Him?” John is an Emmy and Grammy-nominated filmmaker. I was working at WISN at the time and John wrote the catchy slogan: “Radio 11, WISN, of course.” You might have one of those bumper stickers, which I see selling on Ebay for $10.95. John surprised me at the end of the interview with a personal memory.