History of TV in the UK and abroad.

John Logie Baird was a Scottish engineer who was famous for being the first person to demonstrate a working television in the UK.  His first apparatus was made of odds and ends, in 1926 he transmitted flickering images across few feet. Two years after in 1926 he gave the world’s the first demonstration of true television. In 1927 his television was demonstrated over 438 miles of telephone line between London and Glasgow, his company was called Baird Television Development Company (BTDC).

The BBC (British Broadcasting Corporation) was first found in 1920, it was the first ever broadcast centre in the UK placed in central London Westminster.  It is the largest broadcast company in the whole world.

Difference between PAL and NTSC  

PAL (Phase Alternating Line) is a television standards invented by Walter Bruch in Germany 1960. It’s used by Europe, Africa, most of Asia, and Australia.  In PAL, 25 frames are transmitted each second, and each frame is made up of 625 individual scan lines.

NTSC (National Television System Committee) is television standards used in North America, South America, some of pacific islands, South Korea, Japan, Taiwan, and Burma. The first NTSC was developed in 1941. In NTSC, 30 frames are transmitted each second and each frame is made up of 525 individual scan lines.

SECAM (Sequential Color with Memory) is a colour standard television which was invented in 1960 in France. This television broadcast can be found in France, Eastern Europe, some parts of Russia, Greece and Africa. SECAM transmits 25 frames each second and each frame is made up of 625 scan lines.  

The differences between those broadcast televisions are that they are use by different countries, PAL uses less frames per second than NTSC but is using more scan lines however NTSC uses more frames per second but uses less scan lines, SCAM uses the same amount as PAL. If you watch one of the channels of those televisions you can really tell the difference between the colour and sound quality.