Bart is back and Bill is gone, which meant the Fox Network was looking forward to its new season even before expanding to seven nights of prime-time programing. The 1992-93 Fox lineup includes the return of The Simpsons and 10 other programs, including the heartthrobs of Beverly Hills, 90210 and the comic ensemble of In Living Color. Additions to the schedule include six half-hour comedies, one half-hour drama, and four one-hour dramas. Unlike the established networks, Fox will begin the debut of its new shows in July; by the time the other networks start up in the fall, Fox will be on six nights a week. Night seven _ Monday nights _ will be filled by Fox Night at the Movies, at first on a monthly basis but eventually once a week. The network now has programing Thursday through Sunday. A big addition among the new shows: Melrose Place, which lacks a zip code but boasts the creators of Beverly Hills, 90210. The show, about eight people living in a trendy L.A. neighborhood, will debut July 8 with a special 90-minute episode. The Melrose gang is in their 20s, unlike the similar-sounding teen crowd at 90210. The new show will air Wednesdays, with 90210 staying on Thursdays with The Simpsons, which won't have Bill Cosby and the Huxtables to kick around anymore. Other new shows are the comedies Martin, Flying Blind, The Edge, Woops!, Great Scott and The Ben Stiller Show (yes, his dad is Jerry Stiller); and the dramas Likely Suspects, Class of '96, Key West, and The Heights. Fox has one more trick up its sleeve: Roc, the comedy series starring Charles S. Dutton, will be aired live each Sunday beginning in August. Dutton, along with fellow cast members Rocky Carroll, Carl Gordon and Ella Joyce, are all well known for their work in the Pulitzer-winning plays of August Wilson. The most unlikely name among Fox's potential replacement shows: Dan Aykroyd. The former Saturday Night Live star appears in his first prime-time series, C.C.P.D., which follows the Costa Chula police as they answer some of the most unlikely calls imaginable. And Oscar-winning actor Robert De Niro is executive producer of another potential replacement show, Tribeca, a one-hour anthology series with continuing characters. The schedule: Sunday: Great Scott, 7 p.m.; The Ben Stiller Show, 7:30 p.m.; In Living Color, 8 p.m.; Roc, 8:30 p.m.; Married .. With Children, 9 p.m.; Herman's Head, 9:30 p.m.; Flying Blind, 10 p.m.; Woops!, 10:30 p.m. Monday: Fox Night at the Movies, 8 p.m. Tuesday: Class of '96, 8 p.m.; Key West, 9 p.m. Wednesday: The Heights, 8 p.m.; Melrose Place, 9 p.m. Thursday: The Simpsons, 8 p.m.; Martin, 8:30 p.m.; Beverly Hills, 90210, 9 p.m. Friday: America's Most Wanted, 8 p.m.; Sightings, 9 p.m.; Likely Suspects, 9:30 p.m. Saturday: Cops, 8 p.m. and 8:30 p.m.; Code 3, 9 p.m.; The Edge, 9:30 p.m.