The All-Night Christmas Cover Show at the Matilda Theater (Who was St. Remedius? And why is a medical college named after him?) For decades, the city of Dallas, Texas was known for its winter holiday celebrations, particularly at its most prominent religious institutions: its shopping malls. Every year, malls and stores competed to recreate the best documentary about Dallas holiday events ever made, with the attendant parking lot demolition derbies, trial by combat…