For More Information: Lynn Brockmeyer, WPT publicist, 608-263-3364, [email protected] Erik Ernst, WPT promotion manager, 608-265-3853, [email protected]   University of Wisconsin-Madison Chemistry professor Bassam Shakhashiri delights viewers with the sights and sounds of science in his annual holiday special on Wisconsin Public Television (WPT). Once Upon A Christmas Cheery in the Lab of Shakhashiri airs 1 p.m. Monday, Dec. 20. WPT will present encore broadcasts at 1 and 4:30 p.m. Friday, Dec. 24 In Shakhashiri's 41st-holiday lecture he and special guests, including Bucky Badger and Santa Claus, display fascinating phenomena, color-changing liquids, fog and smoke, and loud and melodious sounds. Niobium, the 41st element, is featured and some of its colorful secrets are revealed. WPT is a service of the Educational Communications Board and the University of Wisconsin-Extension. Wisconsin Public Television is a place to grow through learning on WHA-TV/DT, Madison; WPNE-TV/DT, Green Bay; WHRM-TV/DT, Wausau; WLEF-TV/DT; WLEF-TV/DT, Park Falls; WHLA-TV/DT, La Crosse; and WHWC-TV/DT, Menomonie-Eau Claire.