Okay, time to step in as the Belgian guy. This is from a TV channel called CANVAS. Now, multiple channels in Belgium show parts of the major festivals (I dunno, music festivals seem a huge part of Belgian youth culture). In this case it seems it was a live show, i.e. presenters are on-site, they talk about the bands, interview them, walk around the festival area and interview random people. This is usually all day long, and on radio as well. Another big part of this is sometimes they show live images from a certain band for a few songs, or (I think this might be the case here) after they fail to get permission to broadcast it live they are allowed to afterwards. This happened a few years back with Rammstein at Rock Werchter as well, only Sonne was broadcasted.