Normally, signing up for a streaming video service only gives you the content from that service, leaving you heading elsewhere when a TV network decides to hoard all its shows. If rumors are true, though, Amazon Prime Video may soon offer a lot more in one place. Bloomberg sources hear that Amazon will give you the option to add other subscription services to your account, and show their video libraries alongside its own. Just who's interested isn't clear, but Amazon is reportedly lining up "major, well-known" movie and TV channels for a launch that could happen as early as December.