<p>A few months ago, a new podcast and radio show called “Bookends” premiered on CBC. It’s hosted by Mattea Roach, the Canadian “Jeopardy!” champion who held a 23-game winning streak a few years ago. Right before the show’s debut, Mattea sat down with Tom Power to tell us a bit about “Bookends” and what they were most looking forward to. Plus, they shared the correct strategy for wagering on a Daily Double.</p>