Maurice Costello
Costello was born in Pittsburgh, Pennsylvania to Irish immigrants Ellen (née Fitzgerald; born 1853) and Thomas Costello (born 1852). He made his film debut in 1908, but was long believed to have debuted in "Adventures of Sherlock Holmes; or, Held for Ransom" (1905), supposedly playing the lead in what is regarded as the first serious film to feature the character of Sherlock Holmes, since it was preceded only by the 30-second comedy film "Sherlock Holmes Baffled" (1900). However, Holmesian scholar Leslie S. Klinger has written that the identification of Costello in the role is flawed. Klinger states that the first identification of Costello with the role was in Michael Pointer's "Public Life of Sherlock Holmes" published in 1975 but Pointer later realized his error and wrote to Klinger stating
The Return of the World's Greatest Detective
The Return Of The World's Greatest Detective is a 1976 American made-for-television mystery comedy film starring Larry Hagman as an inept motorcycle cop named Sherman Holmes, who, after sustaining a head injury, became convinced that he was actually Sherlock Holmes and as a result of his injury acquired formidable powers of observation and deduction. Dean Hargrove and Roland Kibbee wrote the film's story directly for television, intending it to be a pilot for a series that would have been titled "Alias Sherlock Holmes." The film originally aired on NBC on June 16, 1976.