Plot: Marvin Gaye concert taped August 1974 in Atlanta, Georgia. --Marvin Gaye performs ""Trouble Man,"" ""Inner City Blues (Make Me Wanna Holler),"" ""Come Get to This"" and ""Keep Gettin' It On"" --Marvin Gaye - medley of hits: ""I'll Be Doggone,"" ""Try It Baby,"" ""Can I Get a Witness,"" ""You're a Wonderful One,"" ""Stubborn Kind of Fellow,"" ""How Sweet It Is,"" ""Distant Lover,"" ""Let's Get It On,"" ""Jan"" and ""What's Going On"" The show included interview segments, filmed at Marvin Gaye's house in Washington D