An interlude of ten minutes 'punctuated' humour from this famous comedian gives the day's broadcasting another popular feature. ' Stainless Stephen ' is a Sheffield schoolmaster, and a real radio comedian. He started work on the music-halls in 1921. His first broadcast in 1923 was soon followed by national popularity, and ho has broadcast over one hundred and fifty times since. He evolved the idea for his punctuation style while on a signalling course.