#UnlockUltraHDMomentsWithXiaoZhan# What kind of wonderful experience is it when ultra HD meets ultra heart-throbbing? The Beijing Satellite TV 4K ultra HD channel makes a stunning debut today. @X玖少年团肖战DAYTOY invites you to explore the ultra-clear vision and savor the human fireworks. #BeijingSatelliteTV4KUltraHDChannelStunningDebut##XiaoZhan#