Capital Radio is a song and an EP by The Clash.
The original 2:07-2:09 song has been included as "Capital Radio" or "Capital Radio One" on Capital Radio E.P. (1977), Black Market Clash (1980), Clash on Broadway (1991), The Story of the Clash, Volume 1 (1988), From Here to Eternity: Live (1999), The Essential Clash (2003), and Singles Box (2006).
Lyrically, the song is an attack on the music policy of what was (at the time)…
Yes, its time for the Dr. Gobbles Show
Theres this tower in the heart of London
With a radio station right at the top