Answer the following question: Information: - Ken Riddington ( 8 May 1922 -- 26 December 2014 ) was a British television producer , who worked predominantly in BBC television drama from the 1970s onwards . Riddington was born in Leicester . Originally a stage actor , '' truly dreadful '' according to Riddington himself , he moved to a back stage role managing the Adelphi Theatre from 1950 and then directing the musical Rendezvous at the Comedy Theatre in 1952 . Later , he managed the London Palladium and Palace Theatres in London 's West End . After a period as a BBC television floor manager in the early 1970s , he became a producer . His first project as a producer to gain recognition was the 10 part serial adaptation of Anna Karenina ( 1977 ) . Subsequently Riddington produced several high - profile television series and serials , including Tenko ( 1981 ) , The Citadel ( 1983 ) , The House of Eliott ( 1991 ) and Andrew Davies 's adaptations of Michael Dobbs ' House of Cards trilogy -- House of Cards ( 1990 ) , To Play the King ( 1993 ) and The Final Cut ( 1995 ) . Riddington was involved with several other projects scripted by Davies , including A Very Peculiar Practice ( 1986 -- 88 ) , a black comedy set in a university medical centre . For a time during the 1980s , he was the acting Head of Series & Serials in the BBC drama department , before returning to front - line producing work . Ending his period at the BBC at the age of 75 , he and his wife Liz Riddington enjoyed twelve years of retirement before Ken moved to a London nursing home , where he was treated for dementia . Riddington died on 26 December 26 , 2014 . - Broadcasting is the distribution of audio and/or video content or other messages to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum (radio waves), in a one-to-many model. Broadcasting began with AM radio, which came into popular use around 1920 with the spread of vacuum tube radio transmitters and receivers. Before this, all forms of electronic communication (early radio, telephone, and telegraph) were one-to-one, with the message intended for a single recipient. The term "broadcasting", borrowed from the agricultural method of sowing seeds in a field by casting them broadly about, was coined by either KDKA manager Frank Conrad or RCA historian George Clark around 1920 to distinguish this new activity of "one-to-many" communication; a single radio station transmitting to multiple listeners. - Drama is the specific mode of fiction represented in performance. The term comes from a Greek word meaning "action" (Classical Greek: , "drama"), which is derived from "to do" (Classical Greek: , "drao"). The two masks associated with drama represent the traditional generic division between comedy and tragedy. They are symbols of the ancient Greek Muses, Thalia, and Melpomene. Thalia was the Muse of comedy (the laughing face), while Melpomene was the Muse of tragedy (the weeping face). Considered as a genre of poetry in general, the dramatic mode has been contrasted with the epic and the lyrical modes ever since Aristotle's "Poetics" (c. 335 BCE)the earliest work of dramatic theory. - The British Broadcasting Corporation (BBC) is a British public service broadcaster. It is headquartered at Broadcasting House in London, is the world's oldest national broadcasting organisation, and is the largest broadcaster in the world by number of employees, with over 20,950 staff in total, of whom 16,672 are in public sector broadcasting; including part-time, flexible as well as fixed contract staff, the total number is 35,402. - BBC television dramas have been produced and broadcast since even before the public service company had an officially established television broadcasting network in the United Kingdom. As with any major broadcast network, drama forms an important part of its schedule, with many of the BBC's top-rated programmes being from this genre. Given the information above, choose from the list below the object entity that exhibits the relation 'date of birth' with the subject 'ken riddington'. Choices: - 1920 - 20 - 335 - 35 - 402
Answer:
1920