I'm fascinated by the shift in internet culture to allow this. In the early 2010s MLB would have done their best to remove unauthorized clips from the web. It would have always been done as 'copyright violation'. But, the shift democratizes the content itself - and makes it available for critique/analysis/comedy.
Baseball Savant [1] might just blow your mind. It is far and away the best stats/data site provided by a pro sports league, likely anywhere on Earth. The search page offers about 40 ways to narrow a search, and once you've found what you are looking for it can generate a dozen or two different charts and graphics. On many of them, any circle representing a pitch is a clickable link that brings up the TV video of that pitch. You really like the data you found? No problem, there's a button to download it in CSV format, with about 95 columns of data for each pitch. Do whatever you want with it as long as its non-commercial.
There are conferences where people go and present research and other cool things they do with the data. MLB sends people to them and most teams do as well. If you present something cool, you'll have half a dozen teams asking you for an interview.
