BBC Scotland will broadcast live television coverage of Ayr United versus Hibernian and St Mirren against Heart of Midlothian in the Scottish Cup fifth round.
The tie at Ayr will be on Friday, 7 February with the game at St Mirren three days later.
Both games will kick off at 19:45 GMT and will be televised on BBC Scotland and iPlayer.
There are five more ties on Saturday, 8 February while Rangers host Queen’s Park on Sunday, 9 February.
The Premiership fixtures between St Mirren and Hearts this season have both been won by the home side while Ayr and Hibs last met in a 2017 League Cup tie that the Easter Road side won 5-0.
