From this site John Logie Baird broadcast the first television programme in Great Britain on the 30 September 1929.
The Royal Television Society
Site: John Logie Baird & Television broadcast (1 memorial)
WC2, Long Acre, 132
The plaque is on number 132 but Seven Dials and Research Gate say his flat/studio was at number 133, to the left (west) of the site of the plaque.
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