A multi-user experience extending a standard TV content with AR elements is presented. It runs with both a standard tablet and a premium MR headset, the Microsoft HoloLens. A virtual TV mosaic is displayed around the TV screen and used as a GUI to control both TV and MR content. This paper focuses on the collaborative and personalized dimension offered by the experience. Unlike most AR applications, it can be simultaneously run by several users using different devices. The users can share content with others while keeping a personalized display. The added-value of such an extended TV experience has been demonstrated through complementary types of content, and user feedback confirms a real interest in this new kind of home entertainment, at the same time immersive, interactive, collaborative and personalized.