Netflix Party - Netflix Party is an extension for watching Netflix remotely with friends and family for movies nights with that long-distance special someone.

PopcornTime iOS App - Watch movies & TV shows instantly on iOS (no jailbreak req.)

Showgoers - Showgoers is a website dedicated to watching Netflix movies together with friends or loved ones who are not sitting on the same PC.

OttoPlay - OttoPlay turns Netflix, Youtube and Hulu into continuous, randomized channels, like TV.

ShareTube - Watch YouTube, synced with friends.

Kodi - Kodi is an award winning free and open source media player that got its start on the Xbox console.