Bob Craig and ended in October 1988 when Craig left the radio station. Craig returned in the spring of 1990, and again hosted a contemporary jazz show, this one running on both Saturday and Sunday nights from 7 p.m. to midnight. Along with the jazz, some soft rock songs were mixed in as well. The show lasted one year and ended in the early summer of 1991. Eventually Philadelphia got its first full-time smooth jazz station in 1993, 106.1 WJJZ, which made its debut two years after WMGK's contemporary jazz show had ended. WUSL, the chief rival to WMGK, switched to country music in 1981. In 1989, WEAZ, an easy listening outlet known as "Easy 101," made the transition to Soft AC, and in 1993, changed its call sign to WBEB, calling itself "B-101." Easy 101 had a large number of listeners, and most of them stayed with the station when it became B-101, causing WMGK to slip in the ratings. In addition, WSNI was also playing adult contemporary music, giving Philadelphia three stations in the AC format. 1994-1997: '70s Hits On July 11, 1994, WMGK dropped the long time AC format and changed it to an all-1970s format. The 70s hits included classic rock, soft rock, disco and R&B. By 1995, the station added a few big 1960s and 1980s hits, and no longer used the term "Magic." By the Fall of 1995, WMGK played mostly classic rock with some rock-friendly classic hits thrown in, but not much of the harder material. 1997- present: Classic rock In 1997, Greater Media acquired two more Philadelphia FM stations, album rock WMMR and modern AC WXXM. WMGK continued to position itself as a Classic Hits station. But when WYSP changed its format from classic rock to modern rock, WMGK began to describe itself as classic rock, eliminated non-rock 70s songs altogether. Still, with rocker WMMR in the cluster, playing plenty of harder-edged classics, WMGK leaned softer than most classic rock stations. On November 17, 2006, at 6 pm, former New Jersey-based classic rock station WTHK became "The New Smooth Jazz 97.5 WJJZ." With WTHK no longer airing classic rock, WMGK became the Philadelphia region's only classic rock station. The station on 97.5 is now co-owned with WMGK and carries a sports radio format as WPEN-FM, which was once WMGK's call sign. On April Fools' Day in 2015, WMGK reverted to its broadcast