Overview: TINKER, TAILOR, SOLDIER, KAY; Kay must decide if she wants to tell Mrs. Leroy (Julie Kavner) about her husband's philandering after she catches him in the act with the delivery girl. SWEET DREAMS; Now two months married, Gary and Joanie talk one night about their marital status after she thinks that he may be losing interest in her. PUMPING IRONY; Sara and Greg Downey hire a fitness instructor (special guest star Jake Steinfield) to keep them in shape, while lazy Greg disavows the routine. BART OF THE JUNGLE; Bart, Lisa and Maggie take all of Homer's neckties and play jungle in their back yard.