Never played enough on the radio in my view. It is a classic song which I loved in my childhood and still enjoy listening to now. I like the Madness cover version as well but the original song is just great and can't be bettered.
This original version from 1971 doesn't receive much airplay these days compared to Madness' 1980s version which is still played on various Oldies stations. However when you hear Labi Siffre's version it makes you realise what a beautiful song it is.