Guests: Country singers Waylon Jennings Jessi Colter and Roger Miller comedian Flip Wilson actor Jamie Farr singer Diana Trask comedian Professor Irwin Corey NASCAR racers Darrell Waltrip and Bobby Allison and the Fruit Jar Drinkers. Also: stock-car races with Country Western personalities. Highlights: Mel sings "She's a Heartbreaker". Jessi sings "I'm Not Lisa". Diana sings "Back Home Again".