1946 in television - The BBC resumes television broadcasting after its suspension during the Second World War. RCA demonstrates all-electronic color television system. FCC issues first network license to DuMont.
1945 in television - DuMont begins first network broadcasts, August 9. Applies for first network license.
1938 in television - DuMont manufacturers and sells first all electronic television sets to the public. Baird gives the first public demonstration of colour projection television
1927 in television - Baird demonstrates the first ever system for recording television. His Phonovision system records pictures and sound on conventional 78rpm gramophone records.
1908 in television - In a letter to Nature A.A. Campbell-Swinton[?] describes the modern electronic camera and display system which others are to develop throughout the 1920s.
... the square of b/(2a) to both sides, getting
<math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math>
The left side is now a perfect ...