I've almost been in the DM... when they want to portray you as a goodie (even if you're awful!!)... then yes you get the make up artist, nice location, they'll drag you off somewhere nicer if necessary..
Fortunately mine was dropped (it was about Cesar Milan, just after the Titchmarsh Interview... I had a very very pretty Afghan hound mix dog at the time who had been absolutely fucked up by people following him to the letter)... but they turned up and dolled me up, we went to my dads country pile, not my scruffy ex-council house.
If they want you to be the baddie, there'll be none of that at all!