a call to the police by one of the program's viewers. This misunderstanding was, however, cleared very swiftly. A 2-hour special episode of Aktenzeichen XY aired on 16 October 2013, dealing with the case of Madeleine McCann, who disappeared in Portugal in 2007 at the age of three. McCann's parents and a Scotland Yard detective were also featured in the broadcast. A record 24.3% audience share was recorded in that episode alone. On 3 June 2020, the Criminal Police Office presented a new suspect on Aktenzeichen XY... ungelöst and made a public appeal again for information relating to the case. The police stated that they received useful information regarding the new suspect in 2013 after the case was first featured on Aktenzeichen XY, but that it took years to find substantial evidence for prosecution, and that they still need more information. The programme is known for its high viewership across all age groups. In 2014, Aktenzeichen XY was watched by around six million viewers, with an audience share of 20%. Similar formats In Germany The private broadcaster Sat.1 and the public broadcaster MDR both produced similar programmes, known as Fahndungsakte (English: Manhunt Files) and Kripo live respectively. Sat.1 cancelled Fahndungsakte in 2000 after three years' run due to low audience figures. MDR has had more success with Kripo Live on air since 1990, which concentrates on Kriminalpolizei. Sat.1 briefly aired a revival of the format, titled , in 2016. Others include (ORB Fernsehen later RBB Fernsehen, since 1992), Crime! – Der Justizreport (HR-Fernsehen, 2004), Ungeklärte Morde – Dem Täter auf der Spur zeigt (RTL II, 2002–2003 and 2011–2013), (NDR Fernsehen and WDR Fernsehen, 2008–2011; Das Erste, 2018 and its regional versions Maintower kriminalreport (HR, since 2014) and Kriminalreport Südwest (SR Fernsehen, 2018–2019), which was replaced by Vorsicht Verbrechen (SR, since 2019). Internationally The format has been sold to several countries, including Great Britain where it has been known as Crimewatch since 1984 and has spawned a number of spin-offs, one of which is still on air (the daytime version) alongside Crime NI, a regional version broadcast monthly in Northern Ireland. Aktenzeichen XY is the first German television format to have entered the American market, where it is known as America's Most Wanted and was originally broadcast from 1988 to 2013 before being revived in 2021. Other versions include: Hong Kong (Police Report, 1973–2020; , 1985–1997) Netherlands (, since 1975; ,