FA Cup holders knock out Palace
FA Cup holders Wigan caused the only shock of the fourth round with a 2-1 win against Crystal Palace, while Sunderland, Cardiff and Swansea all edged their way through
Wigan were relegated from the Premier League after their historic cup win in May and only 14 places separated them from the visitors, who were a Championship side last season.
Cup final hero Ben Watson put his side ahead in the 36th minute and although Aaron Wilbraham equalised midway through the second half, James McClean quickly restored Wigan's advantage.
Fellow Championship side Birmingham threatened a surprise when Lee Novak gave them a 15th-minute lead at home to Premier League Swansea but two goals from Wilfried Bony in three second-half minutes turned things around and decided a 2-1 win.
Non-league Kidderminster put up a brave fight at Capital One Cup finalists Sunderland but went down 1-0 to a fifth-minute goal from 19-year-old Charis Mavrias, his first for the club since joining in the summer.
Premier League sides Hull, Southampton and Cardiff all made it safely into round five.
Matty Fryatt scored both goals as Hull beat League Two Southend 2-0, Guly Do Prado and Sam Gallagher scored in Southampton's 2-0 win at home to Yeovil, while Frazier Campbell's solitary strike was enough to give Cardiff a 1-0 win against Championship side Bolton 1-0 at the Reebok Stadium.
In the all-Championship clash, Simon Church scored early in the second half as Charlton won 1-0 at Huddersfield.
Brighton won 3-1 at Port Vale as Rohan Ince and Solly March scored either side of Chris Robertson's equaliser before Jonathan Obika wrapped up victory.
League Two Rochdale lost 2-1 at home to Sheffield Wednesday, who had goalscorer Joe Mattocks sent off, as they could not force an equaliser after Michael Rose had pulled one back. Oguchi Onyewu had scored the Owls' second.