Chris Bierdeman fondly recalls watching East Peoria’s snaking, festive holiday-lights parades while growing up in Illinois. The Festival of Lights, as it’s called, is a four-decade tradition that unites floats, lighting displays and other holiday décor. But there’s also the drive-thru park. “It’s a show they run after Thanksgiving through New Year’s,” said Bierdeman, now the events manager for the city of Loveland.