Celebrate 50 years of the harmonious pop-folk-rock group that defined an era. The special features interviews and performances by Mama Cass, Michelle, Denny and John, with rare footage not seen in decades. ED SULLIVAN Presents MY MUSIC: California Dreamin’ Songs of the Mamas and the Papas, Tuesday, August 23, 7 PM, on KTWU-HD, Digital Channel 11.1.