Happenings TN Aquarium's Twist on 12 Days of Christmas: 'Yuletide Fishtivities' Starts 12/26 WUTC Published December 18, 2013 at 12:46 PM EST Facebook Twitter LinkedIn Email Listen • 4:53 The Tennessee Aquarium's Yuletide Fishtivities begin after the Christmas holiday and last until January 6th. WUTC's Mark Colbert reports.