Bilibili. Radio 650 is a project in the variety show "Fifty Kilometers Taohuawu". This variety show has official investment from Bilibili, so every time the variety show is involved in this project, it will be broadcast live on Bilibili. Radio 650 is a project that has been retained since the first season of "Fifty Kilometers to Taohuawu" and this project has been retained until the second season.