Johnston, Iowa - Special guests, new programs and viewer favorites will take center stage during Festival 2018, February 24-25, March 3-11 and 17-18 on statewide Iowa Public Television. This programming celebration-the network's only extended pledge drive of the year-allows viewers to support the programming they enjoy. Festival programming will air on IPTV (.1), IPTV WORLD (.3) and IPTV Create (.4). All of this year's new specials airing on IPTV (.1) are listed below.