generate questions: Postwar broadcast coverage was extended to Birmingham in 1949 with the opening of the Sutton Coldfield transmitting station, and by the mid-1950s most of the country was covered, transmitting a 405-line interlaced image on VHF.[original research?]
What city received BBC signals starting in 1949? {sep_token} Which facility brought the BBC's transmissions to Birmingham? {sep_token} What kind of image was broadcasted by the BBC by the mid-'50s? {sep_token} On what frequency band was the BBC broadcasting in thie 1950s?