So many questions on YA are about Ouija boards and how scary or dangerous they are. OK, this is how it is.
The board or any means of communicating with spirits is not evil of itself. The reason so many people, especially young people, have scary stuff happen with Ouija boards is that they're messing with forces they don't understand and don't know how to use safely. They shouldn't be used as games because they can invite spirit entities to contact you, and if you don't shield out negative entities, they can come through just as easily as positive ones.
I've heard it explained as being like opening your front door to the spirit world, putting on party music, and inviting anyone who comes by to come in and party with you. You probably wouldn't do that in the physical world, so why would you want to do that with spirits you know nothing about?
Watching recordings of Ouija boards probably won't cause you harm, but I wonder why you're so fascinated with them. Maybe you're attracted to the sense of danger you have with them? Or are you attracted to the idea of other-worldly beings?
Either way, pray for guidance and direction before you get more deeply involved in this stuff. It's not all evil, but there is the potential to get in over your head and get in trouble with it. Knowledge, caution and patience are your friends.