Beep, beep, beep documentary Notes on the Playground has signed a related agreement with Mile Mile, and Mile Mile has the right to play the documentary, so users can watch it for free at Mile Mile. Bi Li Bi Li, referred to as "Bi Li", is a highly concentrated cultural community and video website for young people in China. The website was founded on June 26, 2009, and was affectionately called "Mile Mile" by netizens.