BBC Knowledge

	BBC Knowledge BBC Knowledge was a British television channel which was owned by the BBC and was launched on 1 June 1999, broadcasting documentary, cultural and educational programmes. It was shut down on 2 March 2002, and was replaced by BBC Four. History Launch The BBC had been wanting to expand into the digital television market for a number of years prior to BBC Knowledge's launch. Originally this was by their association with Flextech, which spawned the UKTV network. Both companies had different ideas on how the new channels would be run: the BBC wanted the channels branded as BBC channels, but Flextech wanted the channels to contain advertising. The BBC refused, stating that no domestic BBC channel should carry advertising, and in the end a compromise was made. Two of the channels would launch as BBC channels, the soon to be BBC Choice and the then called BBC Learning, with the remainder of the channels being launched as the UKTV network, intended to be BBC in all but name. Prior to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	576i 576i is a standard-definition digital video mode, originally used for digitizing analog television in most countries of the world where the utility frequency for electric power distribution is 50 Hz. Because of its close association with the legacy color encoding systems, it is often referred to as PAL, PAL/SECAM or SECAM when compared to its 60 Hz (typically, see PAL-M) NTSC-colour-encoded counterpart, 480i. The ''576'' identifies a vertical resolution of 576 lines, and the ''i'' identifies it as an interlaced resolution. The field rate, which is 50 Hz, is sometimes included when identifying the video mode, i.e. 576i50; another notation, endorsed by both the International Telecommunication Union in BT.601 and SMPTE in SMPTE 259M, includes the frame rate, as in 576i/25. Operation In analogue television, the full raster uses 625 lines, with 49 lines having no image content to allow time for cathode ray tube circuits to retrace for the next frame (see Vertical blanking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	The Kit (BBC) ''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]