Who Do You Think You Are (2004)

Sports presenter and former footballer Gary Lineker follows the trail of his great, great great grandfather James Pratt, and discovers that James was a poacher in Victorian England and served time in Leicester Prison. Gary wants to know why James ended up becoming a repeat offender. Gary also wants to get to the bottom of how his four times great grandfather Thomas Billingham, who was born to an illiterate gardener, ended up becoming a highly-skilled legal clerk.