The YY channel of Tieba is generally a communication platform set up by Tieba owners to promote communication among Tieba friends. Of course, the YY in each Tieba must be different. You have to download a YY first. Then register an account. It's better to ask you to enter the YY channel ID. Just enter the YY of your Tieba here. Regarding where YY is located in Tieba, you can ask the old people in Tieba, or in the bar regulations. I hope it can help you. It’s purely hand-made and I hope you will adopt it