Teletext and to pad out the fixed packet. The vertical caption position is determined by the packet address. In the case of the Ceefax and ORACLE systems and their successors in the UK, the teletext signal is transmitted as part of the ordinary analog TV signal but concealed from view in the Vertical Blanking Interval (VBI) television lines which do not carry picture information. The teletext signal is digitally coded as 45-byte packets, so the resulting rate is 7,175 bits per second per used lines (41 7-bit 'bytes' per line, on each of 25 frames per second). A teletext page comprises
BBC West Midlands BBC West Midlands BBC Midlands is the BBC English Region producing local television, radio, web and teletext content for Herefordshire, Shropshire, Staffordshire, Warwickshire, the West Midlands, Worcestershire and northern Gloucestershire. Although the region has been unofficially called BBC West Midlands since BBC East Midlands became a separate region in 1991, it retains the BBC Midlands name and brand, with its history dating from 1927, for public use. The BBC Midlands region carries a number of regional programmes today. The regular schedule consists of the flagship "Midlands Today" news programme, regional news bulletins, the weekly regional magazine programme "Inside Out" and