Like its twin, I bought this in 1980 because it was 'rare'. This is the US release of the single (in the UK and Canada I think it was backed with The Trees). The three minute edit of the song takes out the cod-reggae section of the song, with the "words of the profits are written on the studio wall" lyric.
Also the title of the song is clearly written on the label as The Spirit of Radio, whereas elsewhere it's written as Spirit of Radio.
I enjoyed listening to it more than I was expecting to.