Overview: From hobbyists building a clock out of a kit to professionals building one from scratch, clock building seems to be a popular woodworking pastime. Over the years, thousands of clocks have been made and a surprising number have survived. Nowhere is there a more interesting collection of old clocks than that of the National Watch and Clock Museum in Columbia, Pennsylvania. Norm pays a visit to their collection for ideas for his version of a grandfather's clock. Inspired, he combines an Arts & Crafts-style case and some delightful sounding chimes into what is sure to become a family heirloom.