On January 10th around 10:00AM, many promos from the Promo's YouTube channel were taken down for DMCA strikes by PBS. a 2nd copyright strike was also been given in just about an hour.
At around 2:00pm after the 2nd takedown, The channel got a 3rd copyright strike, resulting in the channel to get terminated.
24 hours after the termination of the YouTube channel, all of it's channels (including 4 of the other youtube channels.)
the user didn't notice this until it was announced in the discord server.