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Saturday's three TV games previewed by Matt Brocklebank and Nick Hext looks at the rest of the action...
Leicester needed a replay and VAR intervention to get the better of Fleetwood Town in the third round but that's probably an over-dramatisation of a fairly straightforward victory for the Premier League side in the second leg.
Kelechi Iheanacho's brace - the first of which was initially chalked off for offside before the video stepped in - saw a relatively strong Foxes side home and it was encouraging to see them back that up with another 2-0 win over Watford at the King Power last weekend.
Overall it's been a really positive start to Claude Puel's reign and although everything has to be kept in perspective given what happened here a couple of years ago, they now look pretty much at home as the seventh best side in the country.
It's five clean sheets on the bounce now though it's likely the fast-improving Harry Maguire will be rested again for this one ahead of a big clash with Everton - who are keen on that 'seventh best in the country' claim themselves - in midweek.
Riyad Mahrez didn't play in the first game against Fleetwood and there'd be some concerns over Leicester as 8/13 favourites if he's not in the starting XI but the temptation is to go for goals at the ABAX Stadium.
Former Posh stalwart Grant McCann has instilled an attacking philosophy since taking over the reins and this season they've outscored all bar three sides in League One.
In Jack Marriott they have the division's leading marksman but rather than take him to get on the scoresheet I'd be more inclined to side with 'overs' in the total goals betting.
Prediction: Peterborough 2-3 Leicester
Nine matches get under way in the fourth round of the FA Cup at 1500 GMT on Saturday.
There isn’t much that catches my eye from a punting perspective but I do want to take an interest in Sky Bet League Two promotion contenders Coventry to spring a minor surprise by winning at MK Dons of League One.
The Sky Blues sit sixth in the fourth tier, two points off an automatic promotion place ahead of the weekend, and 13/5 is a tempting price against the struggling Dons.
Former England Under-16s manager Dan Micciche has been appointed boss of the Stadium MK outfit after former Hearts chief Robbie Neilson was shown the door in the midst of a prolonged period of bad form.
The Dons sit in the League One relegation zone and they can’t be taken as heavy favourites against a team with the quality to really stretch them.
Coventry have won seven of their last 10 games and this is the chance to back the Sky Blues to build on their memorable success at home to Stoke in the third round.
It's the FA Cup, it's Liverpool at home against a side they're supposed to beat, and just about anything could unfold, which obviously makes things quite tricky if you're having a bet.
Unlike Mauricio Pochettino and Tottenham, Liverpool haven't exactly covered themselves in glory against lesser sides in this competition over the past few years.
Last term, it was Wolves who did for them on this ground after needing a replay to safely negotiate Plymouth in round three. The year before they needed two games to beat Exeter before losing to West Ham in a replay, while in 2015 (admittedly under Brendan Rodgers) there was a laboured replay with Bolton, another replay to beat Blackburn and a semi-final defeat to Aston Villa.
The Reds are most probably a better, more settled side right now than they have been for a while and the addition of Virgil van Dijk is bound to have a knock-on effect and help others play with a little more confidently, at the back at least.
Posted at 1250 GMT on 26/01/17.