The last time I watched any pro wrestling was back in the WWE's attitude era. As that era ended, I entered my teens and didn't watch TV as much anymore.
Recently, a certain youtuber has reignited my interest in pro wrestling, and I've been wanting to get back into it, but needless to say; I've missed a lot.

Is there any way to watch old episodes online anywhere? (preferably for free), or is there like a list of "must see" matches out there I can find?

Or maybe even just "Must watch" matches to catch me up on whatever's going on right now?