text: The London derby will kick off at 17:15 BST on Saturday, 22 April.
  Spurs are one of only four clubs to beat Premier League leaders Chelsea this season - a 2-0 victory in January.
  The second Wembley semi-final between Arsenal and Manchester City, which will kick off at 15:00 BST on Sunday, 23 April, will be shown on BT Sport, with highlights later on BBC One.
  Tottenham won the 1967 FA Cup with a 2-1 win over Chelsea, while the Blues beat Spurs 5-1 in a semi-final at the new stadium on their way to winning the competition in 2012.
  It is the third meeting between the sides the season - Chelsea won 2-1 at Stamford Bridge in November - and Spurs will hope to have striker Harry Kane back from an ankle injury.
  Football Focus will come live from Wembley on the Saturday as part of the build-up to the semi-final.
  Chelsea beat holders Manchester United 1-0 on Monday to reach the semi-finals, a day after Tottenham thrashed League One side Millwall 6-0 in their quarter-final.
target: The FA Cup semi-final between Chelsea and Tottenham at Wembley Stadium will be broadcast live on BBC One.