to 1991. WTEM (570 AM), a new sports station at the time, acquired the radio broadcast rights from WMAL for the 1992 NFL season. As of January 3, 2017, WMAL's weekday lineup consisted of local talent Brian Wilson and Mary Walter in the morning, then Chris Plante, followed by the syndicated Rush Limbaugh, then Larry O'Connor hosts a local afternoon drive show, followed by the syndicated shows of Mark Levin, John Batchelor, and overnight the syndicated show Red Eye Radio, hosted by Eric Harley and Gary McNamara. Brian Wilson was released in May 2017. In 2015, Cumulus announced that it was planning to sell the station's 75 acre (30 hectare) Bethesda, Maryland transmitter site, in use since 1941, so it could be redeveloped for high-end housing. On May 12, 2016, WMAL was granted a Federal Communications Commission construction permit for a transmitter site relocation. Transmissions from Bethesda ceased on the afternoon of May 1, 2018, with operations switched to the replacement facility at Germantown, Maryland, northwest of the original site and now diplexed with an existing station, WSPZ (later WWRC). Although daytime power remained at 10,000 watts, this relocation resulted in a nighttime power reduction from 5,000 to 2,700 watts. In 2020, the decommissioned Bethesda site was sold to Toll Brothers for $74.1 million, and the Bethesda towers were demolished on November 4, 2020. Flip to sports talk On June 13, 2019, it was announced that WMAL would break away from the simulcast with WMAL-FM and flip to ESPN Radio on July 1, 2019 as ESPN 630. WMAL replaced WTEM as ESPN Radio's Washington, D.C. affiliate, though both stations continue to share Redskins games, with WTEM as flagship. Concurrent with the format change, WMAL changed its call letters to WSBN; prior to the change, it had been Washington's oldest station to be operating under its original call letters. WSBN signed a four-year radio broadcast rights agreement on June 15, 2022 to broadcast Baltimore Ravens games. Studios WMAL broadcast from various facilities in Washington, D.C., and suburban Maryland until July 25, 1973, when it settled in at its current studio facility at 4400 Jenifer Street NW in Washington, two blocks from the city's border with Maryland. WMAL's former transmitting facility, located in the Bradley Hills section of suburban Bethesda, Maryland, once housed studios for WMAL and WMAL-FM. Personalities Among the WMAL broadcasters over the years have been Frank Harden and Jackson