Share 'Sharepoint and videos'

Hi, I'm setting up a Sharepoint server at my Primary School. It's great for documents, pictures tec. but doesn't handle large files well like videos. I'm trying to find a solution to upload and stream videos through Sharepoint that are held on my server. I've seen solutions that host the videos externally but that's going to cost us downloads so I really want an dd-on or something that will let u…