NBC Affiliates | ShopTalk Now ‘NBC San Diego,’ KNSD Makes HD Debut By Andrew Gauthier on Feb. 4, 2011 - 6:09 PM San Diego’s KNSD has undergone a major makeover. At 5 a.m. on Monday morning, the NBC-affiliate officially unveiled a new “NBC San Diego” logo, along with a new graphics package, as the station made its HD debut. ...