“Wow. I don’t know what to say. I’m literally shocked. But of course we would never sell! It belongs in the family, no amount of money would ever change that.” This was the script I was rehearsing in my head on the way to a taping of the long-running television series Antiques Roadshow. On air since 1997, the traveling appraisal series has consistently been one of PBS’ most-watched and beloved programs. The Roadshow films all over the country every year, and my partner Lily and I had finally won tickets through their free lottery to attend the taping at Old…