it's 5 live breakfast with rachel burden and chris warburton on coronation day.rning, where the king and queen will be crowned later today. coronation day. last time there was one of these, millions were watching television for the very first time. now, in the uk, the bbc is using 150 cameras for broadcasts over coronation weekend. this is a global media event. morning music from peer gynt by grieg plays the scale of the operation is vast. these are all temporary tv and radio studios, built at the prime coronation locations. morning music from peer gynt by grieg plays and up early, the mall�*s dedicated group of campers. this is the day they've been waiting for. train guard: good morning. we will shortly be arriving into london waterloo. rush hour has a different look, too. negotiating the station brings challenges... indistinct station announcement. ..then marching to take up their positions. have we seen naga yet? broadcasters chat. forecaster: ..some showers pushing their way gradually i eastwards through the day. again, some sunshine in between the showers, s