DESPERATE HOUSEWIVES - "Don't Look at Me" - Carlos and Gaby get temporary custody of baby Lily, Bree's father and stepmother come to town to mediate between Andrew and her, and Susan suddenly finds Karl back in her life, on "Desperate Housewives," SUNDAY, APRIL 16 (9:00-10:01 p.m., ET) on the ABC Television Network. (ABC/RON TOM) MARCIA CROSS, RONNY COX