Reliable Source: What to expect on 'The Real Housewives of Potomac'

If there is one TV franchise truism, it's "stick to what you know." Formula is queen and Bravo's seemingly never-ending "Real Housewives" offerings are its loyal subjects. Fans and critics alike expect the Drama Queen, the Wild Child, the New Girl, the Grand Dame and, of course, the Person Who Doesn't "Do Drama" (but come on, of course, she does). So when "The Real Housewives of Potomac" premieres on Jan. 17, there will be new yet all too familiar characters on your small screen.