ANTIQUES ROADSHOW's stop in Grand Rapids includes a detour to the Holland Museum in Holland, Michigan - and a nod to Western Michigan's Dutch roots - for a look at Delft tiles through the centuries. Appraisal highlights include a rare Stickley music cabinet designed by Harvey Ellis; a painting by French artist Edouard Cortes that's authenticated in an enlightening way; and a pair of prop spears used in the 1939 classic film The Wizard of Oz, estimated to be worth $30, 000.