Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
Metastream - Watch streaming media with friends
TogetherTube - to watch videos with other people online
Syncplay - Syncplay is a different kind of entertainment platform.
Hyperbeam - A better way to watch together online
myCircle.tv - Watch synchronized videos from Youtube, Dailymotion or Vimeo with your friends up to 20.