Characterization

The point of interviews in these types of shows are so you can get a better feel of how the character is personally instead of on screen in front of the camera. You see them all the time in the middle of drama and all the hectic and it makes you get an idea of what they are actually thinking about the whole show and what's actually going on. They are a good part of shows, even if they are just a load of bs, it makes viewers think they know the cast better, and know what is actually going on a little more.