WNAC-TV discontinued regular programming on its analog signal, over UHF channel 64, on February 17, 2009, the original date when full-power television stations in the United States were to transition from analog to digital broadcasts under federal mandate (which was later pushed back to June 12, 2009). The station moved its digital signal to VHF channel 12, using Program and System Information Protocol (PSIP) to display the station's virtual channel as its former UHF analog channel 64, which was among the high band UHF channels (52–69) that were removed from broadcasting use as a result of the transition.