The Rock County Historical Society’s holiday Tree Show will be a little different this year.  Officials say in the interest of public safety the annual presentation of more than 100 festively decorated fresh-cut tress will be moved outdoors.  Each year, businesses and non-profits sponsor and decorate the trees.  Hundreds of spectators are expected to enjoy the free display.  Historical Society officials say they need more sponsors for the show which runs November 27th through January 5th.