Chris Evans, Alex Jones and Fearne Cotton will give us a whistle-stop introduction to the festival, joined by some special guests.
BBC3 also start their coverage from 7pm, with Rudimental, Haim and Lily Allen, and Paolo Nutini taking to the stage.
If you miss any of that, BBC2 will bring us highlights at 10pm, before continuing with headliners Arcade Fire from the Pyramid stage.
Glastonbury, BBC1, 7pm, BBC2, 10pm, BBC3, 7pm
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