Claim: Sherlock (TV series) is based on letters by a French author.
Evidence: Sherlock is a crime drama television series based on Sir Arthur Conan Doyle 's Sherlock Holmes detective stories.
Sherlock Holmes -LRB- -LSB- ˈʃɜrlɒk_ˈhoʊmz -RSB- -RRB- is a fictional private detective created by British author Sir Arthur Conan Doyle.