was ABC's most successful Friday comedy launch since Boy Meets World debuted three years earlier in September 1993 and helped breathe new life into the lineup. With its mix of supernatural and conventional teen sitcom elements, Sabrina was a buzzy show among ABC's target audience for the night and fit nicely with the lineup's other teen-centered shows. The second new show was Clueless, which was based on and created by the writer/director of the 1995 teen comedy film of the same name and starring many of the same cast members (albeit with Rachel Blanchard and Michael Lerner replacing Alicia Silverstone and Dan Hedaya in the roles of lead character Cher Horowitz and her widowed attorney father, Mel). Clueless was the more anticipated show among ABC's two new Friday comedies, though, despite pulling reasonable ratings, it was not as successful as Sabrina the Teenage Witch was. ABC pulled the series in February 1997, and cancelled it at the end of the 1996–97 season. (Clueless would subsequently be picked up by UPN, where it would run for two more seasons.) Step by Step took over Cluelesss timeslot when it returned for its 24-episode sixth season in March; the abbreviated fifth (and final) season of Hangin' with Mr. Cooper, however, was pushed to June and burned off all 13 episodes on Saturday nights. As a result of the overhaul to cater to a new audience, longtime TGIF staples Family Matters and Step by Step – both of which had been experiencing steadily declining ratings for the past few seasons – were cancelled. The former two would be revived by CBS, where they would serve as the linchpins for a new, competing block airing on the same night, the CBS Block Party. (Because ABC chose to delay its sixth season to accommodate Sabrina and Clueless on the TGIF lineup, the seventh [and final] season of Step by Step premiered on CBS only five weeks after its sixth season finale, the show’s final original ABC broadcast, aired on August 15.) That block, which aired during the 1997–98 season, failed with both the lineup and all four of its shows (including The Gregory Hines Show and another Miller-Boyett series that joined Family Matters and Step by Step, the Bronson Pinchot vehicle Meego) only lasting one season. The success of Sabrina the Teenage Witch prompted ABC to surround it and Boy Meets World with other supernatural-themed shows