The Extended TV application allows to enhance an audiovisual content displayed on a TV, using Mixed Reality technology. During preprocessing, the close environment of the TV is scanned using a consumer depth camera. The captured RGB-D data are analyzed, providing models for both the 3D geometry and the lighting of the real scene. During runtime, the TV is watched through a tablet, and virtual objects can apparently come out of the screen and start populating the user's environment. Virtual objects can be occluded by real objects, and virtual shadows are consistent with the real ones.