|List of years in television (table)|
| … 1930 . 1931 . 1932 . 1933 . 1934 . 1935 . 1936 …|
1937 1938 1939 -1940- 1941 1942 1943
… 1944 . 1945 . 1946 . 1947 . 1948 . 1949 . 1950 …
In radio: 1937 1938 1939 -1940- 1941 1942 1943
In film : 1937 1938 1939 -1940- 1941 1942 1943
The year 1940 in television involved some significant events. Below is a list of television-related events in 1940.
- January - The FCC holds public hearings on television.
- February 25 - The first ice hockey game is televised in the United States, the New York Rangers vs Montreal Canadiens, from Madison Square Garden on W2XBS-TV.
- February 28 - The first basketball game is televised, from Madison Square Garden; Fordham vs the University of Pittsburgh.
- March 10 - The Metropolitan Opera broadcast for the first time from NBC studios at Rockefeller Center an abridged performance of the first act of Pagliacci, along with excerpts from four other operas.
- March 15 - RCA cuts the price of television sets.
- May 21 - Bell Telephone Laboratories transmits a 441-line video signal, with a bandwidth of 2.7 MHz, by coaxial cable from New York to Philadelphia and back.
- June - W2XBS in New York (NBC) covers the Republican National Convention from Philadelphia, Pennsylvania for 33 hours, over a five day period. The signal is transmitted via coaxial cable.
- August 29 - Peter Carl Goldmark of CBS announces his invention of a color television system.
- September 3 - CBS resumes its television transmissions with the first demonstration of high definition color TV, by W2XAB, transmitting from the Chrysler Building.
- January 19 - Mike Reid, English actor and comedian (d. 2007)
- January 22 - John Hurt, English actor
- January 27 - James Cromwell, actor
- February 2 - David Jason, English actor
- February 12 - Ralph Bates, English actor (d. 1991)
- February 22 - Judy Cornwell, English actress
- February 27 - Howard Hesseman, actor
- March 7 - Daniel J. Travanti, actor
- March 8 - Susan Clark, actress
- March 10 - Chuck Norris, actor
- May 5 - Lance Henriksen, actor
- June 1 - Rene Auberjonois, actor
- June 20 - John Mahoney, English-born actor
- June 21 - Mariette Hartley, actress
- July 13 - Patrick Stewart, English actor
- July 18 - James Brolin, actor
- July 22 - Alex Trebek, game show host, Jeopardy!
- August 3 - Martin Sheen, actor
- August 19 - Jill St. John, actress
- August 22 - Valerie Harper, actress
- September 5 - Raquel Welch, actress
- September 12 - Linda Gray, actress
- October 19 - Michael Gambon, Irish-born British actor
- December 11 - Donna Mills, actress