Proper noun
A fictional game of complicated strategy in which players move around a map of the London Underground.
A street in London (named after the Earl of Mornington) after which the tube station was named.
Source: en.wiktionary.orgA list of shows can be seen here: http://www.isihac.co.uk/broadcasts/past.html On one occasion Humph announced that they had a very distinguished actor as a guest who would join in the game of Mornington Crescent. Source: Internet
Although five episodes transmitted in 1974–1975 are still lost, Mornington Crescent seems to have made no appearance before 1978. Source: Internet
Judi Dench and Michael Gambon performed the Mornington Crescent drama The Bromley by Bow Stratagem. Source: Internet
Further popularity Finchley Central and Mornington Crescent became popular in the United Kingdom as a play-by-mail pastime, and in the 1980s were played by post in a number of play-by-mail magazines. Source: Internet
Mornington Crescent is now played widely online, in the spirit of the radio series. Source: Internet
They were also advised that "your local bookshop might have a copy of The Little Book of Mornington Crescent by Tim, Graeme, Barry and Humph." Source: Internet