KNSD (channel 39) is a television station in San Diego, California, United States, airing programming from the NBC network. It is owned and operated by the network's NBC Owned Television Stations alongside Poway-licensed Telemundo outlet KUAN-LD (channel 48). KNSD and KUAN-LD share studios on Granite Ridge Drive in the Serra Mesa section of San Diego; through a channel sharing agreement, the two stations transmit using KNSD's spectrum from an antenna southeast of Spring Valley.