What does Uncle Yang mean?

Yang guang advertisement of central radio & TV reception desk

Yang Guang Advertising Co., Ltd. of the Central Radio and Television General Station is an advertising company under the Central Radio and Television General Station, which was established in June 200619841kloc-0/. The company is responsible for the advertising business of CCTV and its channels, including advertising planning, production and release. Yang Guang Advertising puts advertisements on TV, radio, Internet and other media platforms to provide advertising and promotion services for various enterprises, brands and institutions. China media industry has extensive influence and popularity, and has undertaken many important advertising projects and activities.