I used to work for a management consulting company, so I dressed differently - business casual, probably a lot of things from Banana Republic. My wardrobe now is definitely more expensive, but I always dress for the occasion.
I know the crew so well, so I forget I'm being filmed. It's like cooking with a friend in the kitchen - you're talking, as you do, and maybe you're telling her about this wonderful way to prepare lamb chops - it's more natural, more honest.