History of IPTV:
Up the first 1990s, it had been not thought possible that a television program might be squeezed into the limited telecommunication bandwidth of a copper telephone cable to supply a video-on-demand television service of acceptable quality as the required bandwidth of a digital television signal was around 200 Mbps which was 2,000 times greater than the bandwidth of a speech signal over a copper telephone wire. DCT may be a lossy compression technique that was first proposed by Nasir Ahmed in 1972, and was later adapted into a motion-compensated DCT algorithm for video coding standards such as the H.26x formats from 1988 onwards and therefore the MPEG formats from 1991 onwards. Motion-compensated DCT video compression significantly reduced the quantity of bandwidth required for a television signal, while at an equivalent time ADSL increased the bandwidth of knowledge that would be sent over a copper telephone wire. ADSL increased the bandwidth of a telephone line from around 100 kbps to...