On set smile plenty, maybe look at each other as a closing &/or starting tactic and otherwise look everywhere and especially into the camers but only to emphasize a word or so. Like (eg) a punchline looking up or sideways and then smile direct to camera for the guys who are a bit slow or have just switched-on.
Beware the media, they know little of folk, not much about you, and don't really care - but will sound like it for the duration. TV is fickle by definition. BUT don't let on you are aware of their jaundiced views - they are inudated with people with publicity wheezes and are keeping their distance - though I have to say in my experience it was dis-interest - otherwise you would know them from the clubs you frequent. Right? Or there knowledge of the subject!