I want a device that allows me to watch any movie of my choosing with friends who aren’t in the room with me. We’d all watch the movie at the same time and this device would keep the movie in sync across all our players (e.g. pausing or fast forwarding in one place would do it everywhere), and it would also allow us all to hear each other talking while we watch. That way, I could invite friends from across the country to sit down and catch a flick with me even if we can’t be together in person.
There are low-tech ways of doing this. They all suck.