Who Do You Think You Are? (British TV series)

*Who Do You Think You Are?*
Who Do You Think You Are?
Genre	Documentary
Narrated by	David Morrissey; Mark Strong; Cherie Lunghi; Phil Davis;
Theme music composer	Mark Sayer-Wade
Composer	Theo Elwell
Country of origin	United Kingdom
Original language	English
No. of series	20
No. of episodes	177 (+2 specials); Specials:; 11 July 2007: Adoption Special; 6 August 2014:; 10 Years, 100 Shows Special; (list of episodes)
Production
Running time	60 minutes
Production company	Wall to Wall
Original release
Network	BBC Two (2004–2006); BBC One (2006–);
Release	12 October 2004 –; present

Who Do You Think You Are? is a British genealogy documentary series that has aired on the BBC since 2004, in which celebrity participants trace their family history. It is made by the production company Wall to Wall. The programme has regularly attracted an audience of more than 6 million viewers. More than ten international adaptations of the programme have been produced.