This may be in the wrong folder, could not find one that really fit the subject matter better. Over the past month or so I have been enjoying this professor's channel about the PLA and SKS, did not see a mention of it on the website previously so I thought I would share the link. The channel is more of a history of the PLA and it's association with the SKS rather than a channel strictly about the rifle.
This first link explains the purpose of this channel - https://www.youtube.com/watch?v=o-qNZCAXzFc&t=4s
Latest video details a PLA soldier's first issue of the SKS - https://www.youtube.com/watch?v=A9aQyTZSHxs&t=510s