Walnut Grove Dancing Lights! Completely computerized and synchronized to music - just tune your radio to 99.7 FM as you drive up. The computer controlled show has more than 25,000 lights on 144 separate Light-o-rama channels. It runs until Jan. 4, from 5-11 p.m. each Sunday to Thursday and 5 p.m. to midnight on Fridays and Saturdays. On Christmas Eve, Christmas Day and Boxing Day, it will also run until midnight.