Television is undoubtedly a great invention , but one of the main criticisms of it is that people just aren't selective enough . Lesley , got a television . how do you pick out the sorts ofprogrammes you want to watch ?   I try and look at the programmes that are on to decide which particular ones interest me , rather than you turning it on a seven o'clock and you leaving it on until half-past eleven when the programmes finish .   Do you think of television though as a great time-waster ?   Un ... I think it can be a time-waster and it depends on how particular people are about what they want to see ... Mm , it can just be a sort total amusement for someone and totally consuming without reallyconsidering what it is they're watching .   Aha , but how do you prevent it coming into your life and taking oversour evenings and at the same time perhaps get . . . get out of thetelevision some of the sort of best things ... best programmes that ... that undoubtedly are on television ? 