The FA Cup fourth round tie between Premiership giants Chelsea and League One's Nottingham Forest will be shown live on BBC One on Sunday 28 January.
The match, which is being played at Stamford Bridge, kicks off at 1400 GMT.
The all-Premiership tie between Manchester United and Portsmouth will also be screened live on BBC One at 1715 GMT on Saturday 27 January.
The BBC's first live match of the weekend sees Luton Town host Blackburn at 1230 GMT on the Saturday.
Saturday 27 January
Luton v Blackburn (1230 GMT, BBC ONE)
Man Utd v Portsmouth (1715 GMT, BBC ONE)
Sunday 28 January
Chelsea v Nottingham Forest (1400 GMT, BBC ONE)