Ö1 Radiokunst—Kunstradio In the course of Ars Electronica’s Big Concert Night at POSTCITY, Ö1 Radiokunst—Kunstradio will celebrate its 30th anniversary with a two-hour live broadcast from 10.05 pm to 12 am on September 10 as part of the Ö1 Kunstsonntag on Österreich 1.