Right, let's have a look at some of the best strikes from that first half.

We've been treated to some brilliant goals so far.

One cheeky penalty. One stunning equaliser. Plenty of missed opportunities for Oldham to take the lead.

Good half that at Valley Parade.

League One Portsmouth are in firm control against National League club King's Lynn Town.

Linnets keeper Archie Mair has made a couple of decent saves, but he couldn't do anything about Tom Naylor's sensational strike.

A huge chance for Oldham right on half-time.

Alfie McCalmont leads a break and sets up Ben Garrity. But the Blackpool loanee can't find the target.

Big let off.

League Two Cheltenham are sitting on an upset at half-time at the Jonny-Rocks Stadium.

Finn Azaz's second-minute strike separates the sides.

Almost a third for League One Portsmouth, who are on firmly on top.

But Ronan Curtis' strike hits the woodwork.

Linnets keeper Archie Mair got fingertips to that one.

Approaching the break in all our ties.

Some cracking goals we've seen so far.

Issy Savin de Larclause: What has Tom Naylor been eating this month?!

That's the Portsmouth midfielder's fourth goal in five games - and what a hit.

Great save by visiting keeper Archie Mair to stop Pompey from extending their lead before the break.

Ellis Harrison sees his point-blank header kept out.

Well, we didn't mean it literally. We meant a choice of three games.

But this is some impressive work from BBC viewer Jim Hearson.

How did he miss that?!

A brilliant counter from Oldham, and Dylan Fage whips in a superb cross.

Brice Ntambwe is onto it, but he volleys over from six yards out.

It was easier to score!

Cheltenham defender Lewis Freestone picks up a yellow card for pulling back Crewe forward Chris Porter.

It was a professional foul, and some Alex players wanted a red - but there was a covering defender.

The resulting free-kick from Harry Pickering some 25 yards out is pushed away by Robins keeper Scott Flinders.

Blackpool are building plenty of pressure.

Attack vs defence right now in North Yorkshire.

But still hardly any clear-cut chances.

It's the one in the middle. Between the non-league flurry of round one and the endless giant-killing possibilities thrown up by round three.

But it can create its own magical memories - or ones that aren't so magical.

A Walsall fan working here, for example, remembers a 1990s second round replay at Burnley where the winners would land a third-round trip to Anfield. With the Saddlers winning 1-0, the floodlights went out and they lost the rearranged game.

Nightmare. Do you have any similarly memorable second-round tales? Let us by using #bbcfacup on Twitter.

Image source, Getty Images

Don't forget you can watch three of our five Saturday afternoon games by clicking on the play icons at the top of the page.

You can also find Final Score there too which will keep you updated with the goals flying in across the country.

In addition, we have radio commentary from every tie - to find commentary on your team, go here.

Another chance for the visitors at Fratton Park.

This time it's Simon Power who sends an effort just wide from the edge of the area.

Another attempt from Conor McAleny this time his long-range effort sails just wide.

He might as well have a go, McAleny is controlling the game for Oldham today.

The visitors are well on top.

Not much to shout about so far in North Yorkshire as Harrogate Town host League One Blackpool.

A little tense at the moment.