Two BBC‑supplied recordings — “20th Century Boy” and “Free Angel” — broadcast repeatedly across Radio 1 during March 1973, amplifying T. Rex’s chart dominance.

A listing for a BBC Radio 1 Scene And Heard segment featuring a 7‑minute interview with Marc Bolan, recorded outdoors on March 6, 1973 and broadcast on March 10, 1973.confident, and on the cusp of full‑blown T. Rexmania.