Twitch users can watch pretty much anything from video games to music festivals and TV shows. Typically, people tune in to watch their favorite streamers play games of interest. Watch Parties Twitch “Watch Parties” is when communities come together to watch, react, and debate movies or TV shows offered on their Amazon Prime or Prime Video subscriptions. Watch parties are currently accessible to creators and viewers via the desktop web, with mobile access to be made available in the coming months.