Liverpool will now play Roberto De Zerbi’s side at the Amex on Sunday, January 29, with the 1.30pm GMT kickoff to be broadcast on ITV.
There is still a chance, though, that one of the postponed games against the same two sides could be rescheduled in the midweek beforehand.
Liverpool last played Brighton in the FA Cup in 2012, with efforts from Martin Skrtel, Andy Carroll, Steven Gerrard, Luis Suarez and own goals from Liam Bridcutt and Lewis Dunk sealing a 6-1 win for Kenny Dalglish‘s side.
At the time, Brighton were in the Championship and managed by Gus Poyet, with Dunk the only player still at the club from their lineup that fifth-round evening at Anfield.
The two sides met in the fourth round back in 1991, with a 2-2 draw at Anfield leading to an eventual 3-2 victory for the Reds at the Goldstone.