Emap radio stations Smash Hits! (Freeview channel 712) and Heat (channel 714) have swapped multiplexes this afternoon. The switch means that Heat is now available nationwide (on mux D), ahead of a massive station re-vamp which will see the station carry talk programming for the first time. Music-only station Smash Hits! Is now carried on mux A, and is no longer available in Wales.