আপনি need to download whatever clips/episodes আপনি want to use. Then, if আপনি have Windows আপনি can use Windows Movie Maker to সম্পাদনা it অথবা if আপনি have a Mac, আপনি can use iMovie. These programs come with your computer.
Or, if আপনি want to do some fancy editing, আপনি can buy an editing program with many আরো features, but these programs are pretty pricy so I'd try out WMM অথবা iMovie first!