WSTR-TV discontinued regular programming on its analog signal, over UHF channel 64, on February 17, 2009, as part of the federally mandated transition from analog to digital television (which was pushed back until June 12, due to an extension granted by Congress). The station's digital signal remained on its pre-transition UHF channel 33, using PSIP to display WSTR-TV's virtual channel as 64 on digital television receivers, which was among the high band UHF channels (52-69) that were removed from broadcasting use as a result of the transition.