History of tv in the UK

Throughout the years broadcasting in the UK TV has changed massively. In 1920 the first experimental broadcast was put together and in 1922 the BBC had their first transmission day. For this to happen they had a 2LO transmitter installed on a roof in London. This gave a broader reach for people to receive it , this was used until 1929.  In 1924 the BBC had their first relay from America and then 11 years later , the  world’s first TV service was launched,  this was the first broadcast on high definition  television. For this to happen they used Marcani –Emis 405 line system and Bairds 240 line systems. In 1937 the BBC were able to film outside of the BBC grounds as the first TV van was put into use this gave people the  chance to watch what was going on around England. In 1958 the BBC made the first video tape recorder, this made it able to record the filmings and show it at other times instead of being live. This video tape was called VERA (vision electronia recording apporotis.) This wasn’t used very long as the Americans made an Ampex vriocan which people when used here in the UK. In 1967 tv took a big step and became colour. BBC2 was the first channel in Europe to be become in colour. 1995 was the year that ITV came to the screens. This was then joined by BBC 2 in the 1964 and the channel 4 which was launched in November 1982. Then Channel 5 completed the terrestrial TV channels in 1997. These 5 channels were received through radio waves by antennas or aerials which were placed on top of the TV or outside your house on a wall. Mainly until the 2000’s TV was mainly broadcasted in analogue but over the past 11 years we have been introduced to digital television which is received through aerials just like terrestrial but you have a freeview box to connect to the TV. In 2006 The first high definition  service started . In parts of the England the Analogue service has been switch off this means that they will have to have a tv with digital on or have to get a freeview box to receive  any sort of television programme.

This is the first  RCA television.That was brought out just befor the war.

This is the VERA recorder which was used and made by the BBC.

Through the years video technology has also changed, it all started with Bairds 240 line system since then there has been big changes. In 1946 the first most popular television (around that time) went on sale this was the RCA 630TS this video was a small size of 10”. After this television RCA made more television which progressed and became bigger but still were a very small size. Then in 1949 RCA made the first projection television .Since this television have had a huge change , you can get much bigger television and the quality has become much better. In the last 10 years you have been able to buy high definition television but to be to get this you must have a box that can change the images in HD. In last two years 3D television has also been developed by Sony. To be able to get the 3D experience you have to wear glasses that have a special lenses in them.  Camera’s have also improved throughout the years .
By all this changing TV is now easier to consume as there are many different ways to watch tv and people now have the choose of watching many different channels , to suit what they like.

In the UK, analogue television is broadcasted through PAL (Phase alteration line). PAL is used in many countries around the world including many parts of Europe. PAL is made up of 25 frames per second and has 625 lines. Other countries use different broadcasters such as NTSC; this is different to PAL as it send 30 frames per second and is made up of 525 lines. NTSC stands for national television system committee .This is also a analogue broadcaster but is not used in the uk but is used in America, Japan and parts of the pacific ocean. Another analogue broadcaster used is SECAM (sequential colour with memory). This is the same as PAL but SECAM sends its colour signals through separately. PAL uses 576 of its lines to show the picture.