Today is the first day I ever tried to do anything with an API. I wanted to get the duration of all the videos of a channel added together. Because the channel I am interest
According to YouTube's staff, there's an upper 20000 limit set by design for the number of items returned via PlaylistItems.list
endpoint when queried for a given channel's uploads playlist. This is unfortunate, but a fact.
You may also take into account the recommendation I made responding to a similar question.