KNSD is a television station in San Diego, California. It broadcasts a high definition digital signal on UHF channel 40 (virtual channel 39.1 via PSIP) from a transmitter southeast of Spring Valley. It is an owned-and-operated station of the NBC television network held through Station Venture Operations, L.P., a division of Station Venture Holdings, LLC, a NBCUniversal joint venture. KNSD maintains studios at the NBC Building in downtown San Diego, while master control and local commercial insertion is handled at NBC's West Coast headquarters in Burbank.
Known on-air as NBC 7 San Diego, the branding is derived from KNSD's cable channel position in the market on Time Warner Cable, Cox Communications and AT&T U-verse (it previously branded as NBC 7/39 from 1997 to 2011, reflecting both the cable channel and its over-the-air channel number). There is a high definition feed available in the San Diego area on Time Warner Cable on channel 707 and Cox Communications and AT&T U-verse channel 1007, and in Tijuana on Cablemás channel 130.