By the time the final gavel fell, collectors and investors from around the world had spent more than $3.17 million at Heritage Auctions' Television Treasures sale, spotlighting how nostalgia-fueled buying of collectibles from the past is now serious business. Fans of classic 50s, 60s and 70s television snapped up memories of their childhood from the renowned collection of Stewart Berkowitz, including the original costumes of Adam West and Burt Ward from the 1966-1968 "Batman" series for a combined $575,00 ...