| DATE | YEAR | COUNTRY | EVENT |
| 1 | 1923 | UK | The BBC studios at Savoy Hill opened. |
| 1924 | UK | The BBC radio transmitter at Edinburgh (2EH) opened. | |
| 1932 | UK | BBC Broadcasting House became the headquarters. | |
| 1939 | USA | NBC began an experimental television service in New York, with RCA, Du Mont, Andrea and some other companies marketing receivers. | |
| 1948 | USA | Television network service began in the USA in two groups of cities, centred on New York and Chicago. | |
| 1953 | UK | Two new BBC television transmitters opened, Pontop Pike on channel 5 and Glencairn on channel 1. | |
| 2 | 1955 | UK | BBC FM radio began from the transmitter at Wrotham. |
| 1964 | UK | BBC2 broadcast the first edition of "Horizon". | |
| 3 | 1956 | UK | ITV began in the North of England, from the Winter Hill transmitter on channel 9, with Granada operating the weekday franchise. |
| 4 | 1926 | UK | The General Strike began. In the absence of newspapers, the BBC broadcast five news bulletins each day. |
| 1964 | UK | The BBC television transmitter at Ventnor opened on channel 5. | |
| 5 | 1956 | UK | ABC began broadcasting at weekends to the North of England. |
| 1958 | UK | The BBC began tests of 625-line television in band V from Crystal Palace. | |
| 8 | 1945 | UK | Winston Churchill and King George VI made broadcasts to the nation on VE Day. |
| 9 | 1953 | UK | The BBC television transmitter at Truleigh Hill opened on channel 3. |
| 10 | 1941 | UK | The Queen's Hall was totally demolished by bombs, and Maida Vale studios received a direct hit. |
| 11 | 1940 | Asia | The BBC Hindustani radio service began. It was later replaced by Hindi and Urdu services. |
| 1970 | UK | The Mendip transmitter began broadcasting BBC1. | |
| 12 | 1926 | UK | Lord Reith, reading the 1pm news, announced the end of the General Strike. |
| 1932 | UK | The first broadcast from Broadcasting House was made. | |
| 1937 | UK | The BBC TV outside broadcast van was used for the first time, in order to televise the coronation of King George VI. | |
| 13 | 1968 | UK | The ITA transmitter at Bath opened on channel 8, carrying ITS-SWW. |
| 14 | 1939 | South Africa | The BBC Afrikaans radio service opened. |
| 1981 | UK | A joint BBC/Open University Production Centre opened at Milton Keynes. | |
| 15 | 1962 | UK | The BBC television transmitter at Llanddona opened on channel 1. |
| 16 | 1969 | UK | The Postmaster General approved the introduction of 625-line colour transmission for BBC1 and ITV, from November 1969. |
| 1970 | UK | The Oxford 625-line transmitter began broadcasting BBC1. | |
| 19 | 1940 | UK | Winston Churchill made his first broadcast as Prime Minister. |
| 20 | 1968 | UK | The new ITA franchise holder for Wales and the West of England, Harlech, began broadcasting from the St Hilary, Presely, Arfon, Moel-y-Parc, Bala and Bath transmitters. |
| 21 | 1937 | UK | Tennis from Wimbledon was televised for the first time. |
| 1950 | UK | The BBC Lime Grove studios opened. | |
| 22 | 1962 | UK | The BBC television transmitter at Manningtree opened on channel 4. |
| 1971 | UK | A colour service began on Westward Television with the opening of the Caradon Hill and Redruth transmitters. | |
| 23 | 1924 | UK | The Duke of York, later King George VI, made his first broadcast. |
| 1939 | UK | "London Calling" was published for the first time. | |
| 24 | 1939 | UK | The Derby was televised for the first time. |
| 1960 | UK | The BBC television transmitter at Sheffield opened on channel 1. | |
| 1965 | UK | Colour television tests in the PAL system began on BBC2, replacing previous experimental NTSC tests. | |
| 1971 | UK | The Belmont 625-line transmitter began broadcasting Anglia Television in colour, also extending their service area well into Yorkshire. | |
| 27 | 1961 | UK | Saturday morning Further Education television programmes began on BBC television. |
| 28 | 1923 | UK | The first full-length play was broadcast on BBC radio. |