This week on A Prairie Home Companion, a summer show for dear, sweet mother. Duane is on the receiving end of another dose of smothering mother-love, the Rankin Family sings "Tell My Ma," and mom visits the campsite in an episode of The Lives of the Cowboys. Rich Dworsky sings "Mama Is a Dancing Girl," Robin and Linda Williams sing "Mama's Hungry Eyes" and Walter Bobbie is back as a long-suffering mother for her son Buddy. Plus in Lake Wobegon, tuna hotdish calls a boy home to his mother.