Magnus Magnusson, (born Magnús Sigursteinsson; 12 October 1929 – 7 January 2007) was an Icelandic-born British-based journalist, translator, writer and television presenter. Born in Reykjavík, he lived in Scotland for almost all his life, although he never took British citizenship. He came to prominence as a BBC television journalist and was the presenter of the BBC television quiz programme Mastermind for 25 years. His catchphrase "I've started so I'll finish" was said whenever the time ran out while he was reading a question on the show.