“The Sopranos” comes to an end Sunday. Check out a critics roundtable about the show’s finale. The panel is made of up Bay Area MediaNews TV critics — Chuck Barney, Charlie McCollum and Susan Young — all moderated by Tony Lioce, an editor at the Mercury News. They talk about what will happen to the central character Tony Soprano, the legacy of the show and what the future holds for the actors after the series ends.