Top Gear is a British television series about motor vehicles, primarily cars, and is the world's most widely watched factual television programme. It began in 1977 as a conventional motoring magazine programme. Over time, and especially since a relaunch in 2002, it has developed a quirky, humorous and sometimes controversial style. The programme is currently presented by Jeremy Clarkson, Richard Hammond and James May, and has featured at least three different test drivers known as The Stig. The programme is estimated to have around 350 million views per week in 170 different countries.First run episodes are broadcast in the United Kingdom on BBC Two and (from Series 20) BBC Two HD.