"Old Folks" salutes the senior generation; Lynde and Miss Fabray join the cast regulars for a soap opera spoof and for takeoffs on TV commercials; Carol (as the charwoman) sings "Carol's Theme". In the Carol & Sis segment, Carol and Chris (Vicki Lawrence) discover that Roger (Harvey Korman) is minus an office secretary when they drop in. Carol, clad in hot pants, then makes a mess of office procedures but scores a hit with the company's suave salesman (Lyle Waggoner).