China Media Group and China Railway on Thursday jointly unveiled a new state-of-the-art live streaming studio on the high-speed railway line connecting Beijing with 2022 Winter Olympic co-host city Zhangjiakou. The studio features the world's first application of 5G+4K/8K+AI technology in ultra-high-definition (UHD) TV live broadcast on bullet trains, showcasing China's technological primacy in 5G, UHD displays and high-speed rail networks.