RAJAR (Radio Joint Audience Research Limited) was established in 1992 to operate a single audience measurement system for the radio industry in the United Kingdom. RAJAR is jointly owned by the British Broadcasting Corporation (BBC) and the RadioCentre (Commercial Radio's trade body). Prior to this, the BBC and RadioCentre's predecessor (The CRCA) carried out their own measurements independently.

The methodology is based on a paper diary, which is filled in on a quarter-hour basis for one week by a representative sample. In a year, around 130,000 people complete a RAJAR diary. The research itself is carried out by contractors, currently Ipsos MORI.

There has been controversy over the collection methods, with the former owner of TalkSport, Kelvin MacKenzie, complaining that the diary method consistently under-reported his station's audience. The High Court threw out his lawsuit against RAJAR - the judge dismissing the central plank of his case as "impossible to see".

RAJAR has conducted extensive testing of electronic devices that capture listening, either by picking up encoded signals within station transmissions or by matching captured audio against a database of all transmissions. This would allow measurement to capture both 'conscious' and 'unconscious' listening and would theoretically end listeners attributing their listening to the wrong station. However, RAJAR was not convinced that the devices and the method were ready for use on the main survey and a new two-year contract using diaries was awarded to Ipsos MORI in May 2006, to begin in 2007.

Vicente Fernández Gómez (born February 17, 1940) is a Mexican singer, producer and actor. Known as Chente or El rey de la canción ranchera (The king of ranchera music) throughout the Latin world, Vicente Fernández, who started his career singing for tips on the street, has become a cultural icon, recording more than 50 albums and contributing to many movies. He is the father of the popular singer Alejandro Fernández and Vicente Fernandez Jr.

Although less well known to English-speaking audiences, he has consistently filled stadiums and venues throughout his 35-plus years of performing. His repertoire is pure ranchera, a style described by the Miami Herald as representing "the Mexico of old – a way of life romanticized by rural ranches, revolution, and philandering caballeros". He has sold over 65 million copies worldwide.

Born in Huentitán El Alto, Jalisco, Mexico, Fernandez spent the early years of his life on his father Ramon's ranch on the outskirts of Guadalajara. As a little boy Vicente also worked at a young age for his uncle as a waiter, dish washer, cashier, and finally the manager of his uncle's restaurant. He was known to all the people as "Chente". fdd the idyllic ranchera lifestyle was instilled in him. His mother often took him to see the films of Pedro Infante. Fernandez told of the significance of these films: "When I was 6 or 7, I would go see Pedro Infante's movies, and I would tell my mother, 'When I grow up, I'll be like him.'" By age eight he had taken up the guitar and was practicing his singing in the style of the ranchera singers he heard on the radio.

Satyajit Ray ( Shottojit Rae (help·info); 2 May 1921 – 23 April 1992) was an Indian Bengali motion-picture director, writer, and illustrator who brought the Indian cinema to world recognition with Pather Panchali (1955; The Song of the Road) and its two sequels, known as the Apu Trilogy. As a director Ray was noted for his humanism, his versatility, and his detailed control over his films and their music. He was one of the greatest filmmakers of the 20th century. Ray was born in the city of Kolkata into a Bengali family prominent in the world of arts and literature. Starting his career as a commercial artist, Ray was drawn into independent filmmaking after meeting French filmmaker Jean Renoir and viewing the Italian neorealist film Bicycle Thieves of Vittorio De Sica during a visit to London.

Ray directed thirty-seven films, including feature films, documentaries and shorts. He was also a fiction writer, publisher, illustrator, graphic designer and film critic. Ray's first film, Pather Panchali (1955), won eleven international prizes, including Best Human Documentary at the Cannes film festival. This film, Aparajito (1956) and Apur Sansar (1959) form The Apu Trilogy. Ray did the scripting, casting, scoring, and editing, and designed his own credit titles and publicity material. Ray received many major awards in his career, including 32 Indian National Film Awards, a number of awards at international film festivals and award ceremonies, and an Academy Honorary Award in 1992. The Government of India honoured him with the Bharat Ratna in 1992.