Channel : Hours on the air daily Programs Broadcast
Radio 1 : 12 hours (S16) .
Radio 2 : (S17) Light music,musicals and operas .Sports enents
Radio 3 : 17 hours Classical music and grand operas (S18) serious news and commentaries. Works of (S19) artisttic and intellectual interest
Radio 4 : 16 hours News and imformation,drama talk and entertainment programs (S20) .
原文：
BBc Radio nowadays provide home listeners with four alternative national channels.Each has a distinct character.
Radio One ,broadcasting some 12 hours daily,offering th epublic a program of almost solely popular music.
Radio Two broadcasts over 20 hours a day and provides light music,musicals and even operas,as well as being the principal channel foe the coverage of sports events of all sorts.
Radio Three ,on the air some 17 hours a day,is the channel for classical music.It provides classical music,grand opera,theatre plays,serious news,commentaries and works of educational ,artistic and intellectual interest.
Radio Four,which is relatively new ,provides its listenerss with the principal and most detailed news and information serviceof BBc Radio.It's on the air for a good 16 hours daily.Moreover,it offers a wide range of drama talk and entertainment programs as well as broadcasts to schools.