Tatort is a long-running German/Austrian/Swiss (ARD (since 1970), ORF (since 1972) and SF (1990–2001, again since 2011)), crime television series set in various parts of these countries. The show is broadcast on the channels of ARD (DasErste, (reruns on regional ARD stations)) in Germany, ORF 2 in Austria and SF1 in Switzerland. The first episode was broadcast on November 29, 1970. The opening sequence for the series has remained the same throughout the decades, which remains highly unusual for any such long-running TV series up to date.