Every year, when PCN covers the State Farm Show in Harrisburg, one event is certain to attract its share of curious viewers: the Sheep-to-Shawl Contest.   After the sheep are sheared, alert viewers notice that pre-dyed wool is loaded and ready in the loom.  Within a few minutes, that colored wool will be woven in with the wool that just came off the animal.  Competitors at Kite Tales Weaving show what happens behind the scenes in preparation for the contest:  how the wool is dyed, how teams choose their sheep, and how they prepare their equipment.