Physician and author Dr. Ian Smith provides a closer look at popular eating plans and how to choose the right one for you. Also, NBC News contributor Wilfred Frost joins to discuss his new documentary series, ‘David Frost Vs,’ which explores recent history through the eyes of his father, legendary broadcaster and interviewer David Frost. Plus, James Brolin stops by to catch up and talk about his new show ‘Ransom Canyon,’ centered on three Texas ranching family dynasties.