Title: The Rivals of Sherlock Holmes (TV series)
Content:  The Rivals of Sherlock Holmes is a British anthology mystery television series produced by Thames Television which was originally broadcast on the ITV Network. There were two series of 13 fifty-minute episodes; the first aired in 1971, the second in 1973. The programme presented adaptations of short mystery, suspense or crime stories featuring, as the title suggests, detectives who were literary contemporaries of Arthur Conan Doyle's Sherlock Holmes. The Rivals of Sherlock Holmes took its inspiration – and title – from a series of published anthologies by Hugh Greene, elder brother of author Graham Greene and the former director-general of the BBC. Greene is credited on the programme as a creative consultant.
Title: The Rivals of Sherlock Holmes (book series)
Content:  The Rivals of Sherlock Holmes is a series of published anthologies by Hugh Greene, the former director-general of the BBC. Some of the stories were subsequently adapted for a television series of the same name, broadcast 1971–1973.
Title: The Rivals of Sherlock Holmes (TV series)
Content: John Neville as Dr. John Thorndyke (1 episode) ; Barrie Ingham as Dr. John Thorndyke (1 episode) ; James Cossins as Dr. Jervis (1 episode) ; Peter Sallis as Dr. Jervis (1 episode) ; Douglas Wilmer as Augustus S. F. X. Van Dusen (2 episodes) ; Peter Vaughan as Horace Dorrington (2 episodes) ; Kenneth Colley as Farrish (2 episodes) ; Petronella Barker as Miss Parrot (2 episodes) ; Peter Barkworth as Martin Hewitt (2 episodes) ; Ronald Hines as Jonathan Pryde (2 episodes) 
Title: The Rivals
Content:  The Rivals is a comedy of manners by Richard Brinsley Sheridan in five acts which was first performed at Covent Garden Theatre on 17 January 1775. The story has been updated in numerous adaptions, including a 1935 musical in London and a 1958 episode of the television series Maverick (see below) starring James Garner and Roger Moore, with attribution.
Title: Hugh Greene
Content: The Spy's Bedside Book (ed., with Graham Greene, 1957) ; The Third Floor Front: A View of Broadcasting in the Sixties (1969) ; The Rivals of Sherlock Holmes: Early Detective Stories (ed., 1970) ; Cosmopolitan Crimes: More Rivals of Sherlock Holmes; US edition Foreign Rivals of Sherlock Holmes (ed., 1971) ; The Crooked Counties: Further Rivals of Sherlock Holmes (ed., 1973) ; The American Rivals of Sherlock Holmes (1976) ; The Pirate of the Round Pond and Other Strange Adventure Stories (ed., 1977) ; Victorian Villainies (ed., with Graham Greene, 1984) ; Source: Who's Who. 
Title: The Dorrington Deed-Box
Content:  The 1970s British television series The Rivals of Sherlock Holmes featured two episodes based on Dorrington stories, with Peter Vaughan portraying the detective.
Title: The Rivals (TV play)
Content:  The Rivals is a 1961 television play broadcast by the Australian Broadcasting Corporation. It was directed by Christopher Muir.
Title: The Adventures of Sherlock Holmes (film)
Content:  The Adventures of Sherlock Holmes (released theatrically as Sherlock Holmes in the United Kingdom) is a 1939 American mystery adventure film based on Sir Arthur Conan Doyle's Sherlock Holmes detective stories. Although claiming to be an adaptation of the 1899 play Sherlock Holmes by William Gillette, the film bears little resemblance to the play. Released by 20th Century Fox, the film is the second of fourteen Sherlock Holmes films produced between 1939 and 1946 starring Basil Rathbone as Holmes and Nigel Bruce as Dr. John Watson. The Adventures of Sherlock Holmes is the final film in the series to be released by 20th Century Fox and the final to be set in the Victorian period of Doyle’s stories (all subsequent films would be released by Universal Pictures and set in contemporaneous times (i.e. the 1940s). The film co-stars George Zucco as Holmes's nemesis, Professor Moriarty, and follows Holmes and Watson as they attempt to foil Moriarty’s plans to target a wealthy family and steal the Crown Jewels.
Title: Maverick (TV series)
Content:  and Diane McBain. "The Rivals" is based on a sophisticated comedy of manners play written by Richard Brinsley Sheridan and first mounted in 1775. Roger Moore appears in "The Rivals" as a wealthy playboy who switches identities with Bret to facilitate landing a comely lass (Patricia "Pat" Crowley) with whom he's become infatuated. Two seasons later, Roger Moore would replace James Garner's Bret Maverick with his own Beau Maverick when Garner left the series to successfully accelerate his movie career. This is the only episode with both James Garner and Roger Moore. "Two Tickets to Ten Strike" with Connie Stevens is 
Title: Sherlock Holmes (2009 film)
Content:  Sherlock Holmes is a 2009 period mystery action film based on the character of the same name created by Sir Arthur Conan Doyle. The film was directed by Guy Ritchie and produced by Joel Silver, Lionel Wigram, Susan Downey, and Dan Lin. The screenplay, by Michael Robert Johnson, Anthony Peckham, and Simon Kinberg, was developed from a story by Wigram and Johnson. Robert Downey Jr. and Jude Law portray Sherlock Holmes and Dr. John Watson, respectively. In 1890, eccentric detective Holmes and his companion Watson are hired by a secret society to foil a mysticist's plot to gain control of Britain by seemingly supernatural means. Rachel McAdams 

Question: What genre is The Rivals of Sherlock Holmes?
Answer: detective fiction.
detective and mystery fiction.