Editing John Logie Baird (section)

===First public demonstrations===
Baird gave the first public demonstration of moving silhouette images by television at [[Selfridges]] department store in London in a three-week period beginning on 25 March 1925.<ref>{{cite book|last1=Cooke|first1=Lez|title=British Television Drama: A History|date=2015|publisher=Palgrave Macmillan|page=9}}</ref>
[[File:John Logie Baird, 1st Image.jpg|thumb|upright|The first known photograph of a moving image produced by Baird's "televisor", as reported in ''[[The Times]]'', 28 January 1926 (The subject is Baird's business partner [[Oliver Hutchinson]].)]]
On 26 January 1926, Baird gave the first public demonstration of true television images for members of the [[Royal Institution]] and a reporter from ''[[The Times]]'' in his laboratory at 22 [[Frith Street]] in the [[Soho]] district of London, where [[Bar Italia]] is now located.<ref name="Historical Figures">{{cite web|title=Historic Figures: John Logie Baird (1888–1946)|url=https://www.bbc.co.uk/history/historic_figures/baird_logie.shtml|publisher=BBC|access-date=28 April 2015}}</ref><ref>{{cite journal |last1=Inglis |first1=Brandon D. |last2=Couples |first2=Gary D. |title=John Logie Baird And The Secret In The Box: The Undiscovered Story Behind The World's First Public Demonstration Of Television |journal=Proceedings of the IEEE |date=August 2020 |volume=108 |issue=8 |pages=1371–1382 |doi=10.1109/JPROC.2020.2996793 |issn=1558-2256|doi-access=free }}</ref><ref>Kamm and Baird, ''John Logie Baird: A Life'', p. 69</ref><ref>{{Cite journal|last=McLean|first=Donald F.|date=July 2014|title=The Achievement of Television: The Quality and Features of John Logie Baird's System in 1926|url=http://www.tandfonline.com/doi/full/10.1179/1758120614Z.00000000048|journal=The International Journal for the History of Engineering & Technology|language=en|volume=84|issue=2|pages=227–247|doi=10.1179/1758120614Z.00000000048|s2cid=110636009|issn=1758-1206}}</ref> Baird initially used a scan rate of 5 pictures per second, improving this to 12.5 pictures per second c.1927. It was the first demonstration of a television system that could scan and display live moving images with tonal graduation.<ref name="Telegraph"/>
[[File:John_Logie_Baird_Blue_Plaque.jpg|thumb|upright|left|[[Blue plaque]] marking Baird's first demonstration of television at 22 Frith Street, Westminster, W1, London]]
He demonstrated the world's first colour transmission on 3 July 1928, using scanning discs at the transmitting and receiving ends with three spirals of apertures, each spiral with a filter of a different primary colour; and three light sources at the receiving end, with a [[commutator (electric)|commutator]] to alternate their illumination.<ref>{{cite web|url=https://patents.google.com/patent/US1925554|title=Patent US1925554 – Television apparatus and the like|access-date=23 January 2008}}</ref><ref>John Logie Baird, [https://patents.google.com/patent/US1925554 Television Apparatus and the Like], US patent, filed in UK in 1928.</ref> In the same year he also demonstrated stereoscopic television.<ref>R. F. Tiltman, [https://www.bairdtelevision.com/how-stereoscopic-television-is-shown-1928.html How "Stereoscopic" Television is Shown], ''Radio News'', Nov. 1928.</ref>