As a new student, where can I find Jim Jividen's videos?

I see posts from people asking for help with specific classes, and others respond with, "Watch Jim's videos." Great—but where do I find them? Are they on YouTube? Buried deep in the subreddit?

For the record, I've looked for Jim's videos on YT but nothing comes up for him. I see GreggU, Ethan Kemp and a few others.

Sorry for sounding like such a newbie, but I appreciated any guidance. Thanks!