For what it's worth -- I am attending a dinner party at her apartment this Saturday night (seeing HAIRSPRAY: The Movie Musical in the early afternoon). If I were to judge her on the last couple of dinner parties I've attended, it CAN be considered 'a show'.
She has a concert in March at the PPAC in Providence. I kinda want to see her, because I've never seen her live, but there aren't many Bernadette fans readily available to me. Bernadette at PPAC