A chilly onepublished at 19:33
MK Dons v Northampton (19:45 GMT)
There are some cold looking people about tonight. Wherever you are, wrap up warm!
Use highlights tab to watch goals
Villa, West Brom, MK Dons, Pompey, Bolton & Reading all through
MK Dons host Chelsea on the BBC
Bury and Carlisle win penalty shootouts
Tom Rostance
MK Dons v Northampton (19:45 GMT)
There are some cold looking people about tonight. Wherever you are, wrap up warm!
Aston Villa v Wycombe (19:45 GMT)
Bradford beat Oldham on Saturday and make three changes as midfielder Mark Marshall plus forward's Luke James and Devante Cole replace Kyel Reid, James Hanson and Billy Clarke.
Bradford XI: Williams, Darby, McArdle, N Clarke, Meredith, McMahon, Routis, Evans, Marshall, James, Cole.
Bury and make two changes as defender Danny Pugh and forward Tom Pope come in for Joe Riley and Jacob Mellis.
Bury XI: Lawlor, Pugh, Cameron, Brown, Hussey, Pope, Soares, Etuhu, Tutte, Mayor, L Clarke.
Aston Villa v Wycombe (19:45 GMT)
Who's Jordan Lyden in the Aston Villa side, we asked earlier?
Thanks Dan. Nailed it.
Bolton v Eastleigh (20:00 GMT)
Bolton have made three changes to the team which rescued a late draw at Eastleigh. Suspended goalkeeper Amos is replaced by Paul Rachubka, who has not started a match since May, while Mark Davies and Liam Trotter also start.
Eastleigh have brought in Kaid Mohamed in the only change to the team which nearly pulled off a famous win in the original tie.
Bolton XI: Rachubka, Vela, Dervite, Holding, Moxey, Davies, Trotter, Pratley, Wellington, Feeney, Madine
Eastleigh XI: Flitney, Partington, Evans, Reid (C), Harding; Strevens, Drury, Payne, Reason, Mohamed, Constable.
#bbcfacup
Who are you rooting for tonight? Where are the Cupsets coming from?
Neil: Bristol City win can definitely cause an upset tonight with the pressure of the league off us tonight.
Chris: Trying to follow Carlisle United via a dodgy internet connection in frozen Missouri.
Away from the FA Cup there is a new approach to a frozen pitch being deployed at Bognor's ground. We need more cars!
Bolton v Eastleigh (20:00 GMT)
BBC Radio 5 Live
Bolton manager Neil Lennon: "Tonight’s an important game for us. We will try to negotiate our way to the next round, and hopefully a win will build a bit of momentum for the league.
"It’s not been easy, with what’s been going on at the club. It’s been a very difficult couple of months but we have got to put that to one side.
"It will be hard though. This is a cup final for Eastleigh, and we have to show them the respect they deserve."
Aston Villa v Wycombe (19:45 GMT)
We were looking back at the departures from Aston Villa over the last few years earlier on. Gareth Barry, James Milner, Ashley Young, Fabian Delph, Christian Benteke, Ron Vlaar, Stewart Downing - you'd make a decent side out of that lot wouldn't you?
Aston Villa v Wycombe (19:45 GMT)
Dean Saunders
Former Wales striker at Villa Park for BBC Radio 5 live
"It gets to a point where you just have got to win. Aston Villa got to the final last year, and this season obviously the fans would love to get there again - I do feel sorry for them because Villa have been in steady decline over the past few years.
"There's been a lack of investment in the team. Normally the money you spend will decide where you finish in the table. Going back as far as when they let Gareth Barry go, James Milner - those players haven't been replaced."
Don't forget tonight that all eight ties must be settled before we can go home to bed.
Be that in extra time. Be that through penalties. We're going nowhere until that fourth-round draw is complete.
It is not just in England where we have action this evening - there is plenty going on in Scotland too.
Celtic are taking on Hamilton Academical in the Scottish Premiership, while Forfar host Linlithgow Rose and Inverness CT take on Stirling Albion.
You can follow all the action on a dedicated live text page.
Bristol City v West Brom (19:45 GMT)
Bristol City make five changes from the team that beat Middlesbrough at the weekend. Max O'Leary replaces Richard O'Donnell in goal, while there are also starts for defender Mark Little, midfielder Scott Wagstaff and strikers Luke Freeman and Aaron Wilbraham.
Bristol City XI: O'Leary, Little, Flint, Baker, Williams, Reid, Freeman, Pack, Wagstaff, Burns, Wilbraham.
There are also five changes for West Brom, from the side that lost 3-0 at Southampton. One is enforced, with the injured Darren Fletcher replaced by Chris Brunt in midfield. Also coming in to the side are goalkeeper Ben Foster, for Boaz Myhill, defender Claudio Yacob, and forwards Victor Anichebe, Stephane Sessegnon and Salomon Rondon.
West Brom XI: Foster, Yacob, Evans, Gardner, Anichebe, Brunt, McClean, McAuley, Dawson, Sessegnon, Rondon.
BBC Radio 5 Live
And BBC Radio 5 live sports extra
There are two FA Cup radiocommentaries to tell you about tonight:
Aston Villa v Wycombe (19:45 GMT)is on BBC Radio 5 live - tune in for build-up from about now.
Bolton v Eastleigh (20:00) is on BBC Radio 5 live sports extra - you can join Ian Brown and Kevin Kilbane from 19:45.
#bbcfacup
Who are you rooting for tonight? Where are the Cupsets coming from?
Matt Lavender: Wishing @YTFC, external all the best tonight!! So want another big Premier League team down at Huish Park!
Alex: Let's go @wwfcofficial, external! Got a good feeling about this one!
Mark: Wycombe and Portsmouth for me. Pompey at home will be a tough ask for Mick McCarthy.
Northampton v MK Dons (19:45 GMT)
Northampton make just one change to their line up in their original tie, bringing in Zander Diamond for Ryan Cresswell.
But MK Dons have made six changes to the team which initially drew 2-2 with Northampton. In come David Martin, Antony Kay, Matthew Upson, Dean Lewington, Sam Carruthers and Nicky Maynard as they attempt to earn a fourth-round money-spinner with Chelsea.
MK Dons: David Martin, Lee Hodson,Antony Kay, Matthew Upson, Dean lewington, Sam Carruthers, Jake Forster-Caskey, Rob Hall, Ben Reeves, Dean Bowditch, Nicky Maynard,
Northampton: Smith, Moloney, Buchanan, O’Toole, Diamond, McDonald, Byrom, Holmes, Adams, Hoskins, Richards
Aston Villa v Wycombe (19:45 GMT)
Who's Jordan Lyden in the Aston Villa side? Well, don't go to the Villa website to find out...
Aston Villa v Wycombe (19:45 GMT)
Aston Villa midfielder Jack Grealish starts as boss Remi Garde makes nine changes from the 1-1 draw with Leicester last Saturday. Striker Rudy Gestede came off the bench to score against the Foxes and is rewarded with a place back in the side.
Aston Villa XI: Guzan, Richards, Lyden, Clark, Richardson, Westwood, Sanchez, Grealish, Sinclair, Ayew, Gestede.
Wycombe captain Paul Hayes comes back into the side following the side's defeat at Hartlepool. Striker Gozie Ugwu makes way.
Wycombe XI: Ingram, McCarthy, Jacobson, Pierre, Stewart, Harriman, Wood, Bloomfield, O'Nien, Hayes, Thompson.
Final Score
If you press the red button now, or click play at the top of the screen, you can see inside our 5 live studio as Final Score starts up.
Perhaps more excitingly, goals will be shown in that programme as they go in.
On the move
The transfer window is kicking into gear now. Here's a flurry of moves which have gone through in the last 24 hours or so and you may have missed.
Steven Naismith [Everton - Norwich] £8.5m
Costel Pantilimon [Sunderland - Watford] Undisclosed
Jermaine Pennant [unattached - Tampines Rovers]
Nordin Amrabat [Malaga - Watford] Undisclosed
Timm Klose [Wolfsburg - Norwich] Undisclosed
Yeovil v Carlisle (19:45 GMT)
How much of a dent would £144k make in a League Two side's annual budget? A hefty one, that's for sure.
But manager Darren Way says Yeovil cannot afford to look beyond tonight's third-round replay against Carlisle, despite Everton awaiting the winner.
That fourth-round tie will be televised, earning the victors £144,000 plus gate receipts and prize money.
"There's a job to be done and we have to concentrate on that job," Way, 36, told BBC Radio Bristol.
"If you do not, then you can be easily misled and they'll be doing exactly the same as us."
Yeovil are in 91st place in the league and have 17 points all season. What a lift a win tonight would bring...