Mark L. Walberg, the former host of Antiques Roadshow, confessed that despite his 13-year tenure on the PBS show, he still "knows only a tiny bit more about antiques" than when he first started.

Fans of Antiques Roadshow may be in for a shock after the show’s former host, Mark L. Walberg, admitted that, despite 13 years at the helm of the PBS show, he still “knows only a tiny bit more ...