The six actors at the center of one of the most beloved sitcoms in TV history \u2014 Christopher Knight, Mike Lookinland, Maureen McCormick, Susan Olsen, Eve Plumb and Barry Williams\xa0\u2014 reconvene for a rare group interview to discuss how they wound up on that show, what really went on behind the scenes and why an HGTV special reunited them 50 years later.\nLearn more about your ad choices. Visit megaphone.fm/adchoices