An audience of 7.3 million watched Chelsea’s 3-1 FA Cup semi-final win over Manchester United on the BBC.
The peak audience across the BBC’s platforms saw the Blues end United’s 19-match unbeaten run.
Frank Lampard’s Chelsea will now face London rivals and 13-time winners Arsenal in the final at Wembley Stadium on Saturday, 1 August.
That match can be watched live from on BBC One and BT Sport from 6.00pm.
Arsenal were 2-0 winners over Manchester City on Saturday night.