cable or satellite, many of the over-the-air viewers had problems after the final transition. Some needed to rescan, and others needed a VHF antenna. WJLA-TV applied on August 29, 2009 for special authorization by the FCC to increase its effective radiated power (ERP) to 52 kW. The power increase was put into effect on September 18, 2009. WJLA-TV already ran 30 kW of ERP, which was higher than the other three VHF stations in the area: WUSA (12.6 kW), WBAL-TV (5 kW), and WJZ-TV (28.8 kW) (post transition power levels). References External links ABC network affiliates Comet (TV network) affiliates Charge! (TV network) affiliates TBD (TV network) affiliates JLA-TV Television channels and stations established in 1947 Sinclair Broadcast Group 1947 establishments in Washington, D.C. Major League Soccer over-the-air television broadcasters