Your local Best Buy is about to get even more crowded. Sony is set to join other companies in building its own store-within-a-store at the huge retailer. Starting in May, the Sony Experience at Best Buy will come to 350 locations and be staffed by Best Buy employees with specialized training around Sonys products. Sony says it will use the space to showcase its 4K TVs, 4K media players, surround sound systems, and consoles including the PlayStation 4 and PS3.