KNXV-TV shut down its analog signal, over UHF channel 15, at 12:01 a.m. on June 12, 2009, the official date in which full-power television stations in the United States transitioned from analog to digital broadcasts under federal mandate. At 2 a.m. on that date, the station's digital signal relocated from its pre-transition UHF channel 56, which was among the high band UHF channels (52–69) that were removed from broadcasting use as a result of the transition, to its analog-era UHF channel 15.