When the Smothers Brothers stepped onto the Grandstand stage at the Ex last night, they were working one of the biggest, toughest spots in show busine(...)

Original Toronto Star caption: When the Smothers Brothers stepped onto the Grandstand stage at the Ex last night; they were working one of the biggest; toughest spots in show business. Over the years it's become known to entertainers as that big stage up in Canada. Here; some of them recall it for The Star.