Came across this guys channel and wondered if anyone knew anything about him.
Seems to be from a similar Beijing line to myself, though I can't understand the commentary there's a lot of interesting stuff to pick up on.
https://youtu.be/PxRYiZ14kKM
https://m.youtube.com/watch?v=7wTPgmWUsvY&t=39s
https://youtu.be/3iP7RiZgyNI