Rob Brydon teases more about THAT fishing trip and reveals what he thinks makes Gavin & Stacey such a popular show

Rob Brydon has teased more on what happened during that notorious fishing trip ahead of the Gavin & Stacey Christmas special.

The actor, 59, stars as the lovable Bryn West in the hit BBC show which returns for its finale on December 25.

And one of the last remaining loose ends of storylines to tie up is what happened with Bryn and Jason (Robert Wilfort) during their fishing trip years ago.

While the fishing trip has often been alluded to, fans never found out what did happen that day between him and Bryn, only knowing that whatever they did, is 'legal in Wales'. 

Speaking on Jamie Laing's Great Company podcast Rob has now teased: 'I'm not gonna tell you, but you wouldn't really want to know, would you? 

'See, I'm somebody who if my wife has bought me a present, yeah, say at Christmas or birthday, say at Christmas and it's under the tree. 

'There is no part of me that wants to go. I wonder this. No, no, no, I am for delayed gratification. Let's wait. Let's build. Let's let's enjoy it. And even when I'm opening it, I'm opening it slowly. 

'I want this moment to last. I'm going, oh, save the wrapping. I take my time. And also, even when I've taken the wrapping off, I might not have looked at it yet. I might have done that and gone, oh, because isn't that all about enjoying life.'

The finale trailer released last week saw Gwen confront her son and brother-in law once and for all, demanding they fess up about what happened.

The clip sees her telling a very distressed looking Bryn and Jason: '30 years ago you two went on a fishing trip that almost tore this family apart'.

He will join Ruth Jones (Nessa) and James Corden (Smithy) in the eagerly-anticipated finale which sees all the characters reunite for a final time.

On the podcast Rob also discussed what he thinks makes the show - which first aired in 2007 - so popular.

He said of when they first began filming: 'I knew it was good. They knew it was really strong.

'Well, you just make a make a qualitative judgment. I mean, I always say that the fact is, most things are not hits, right. Most TV shows are not hits. Most films are not hits. Most books are not hits, most records are not hits, right. 

'Most of them just come and go, and that's okay. But then on this so the script, you go, so being Welsh, I look at its portrayal of Wales, and I go, oh yeah, yeah, that chimes with me. These characters are terrific. 

'And all the characters are so well drawn. You know, they could all stand their own show.

'It is beautifully written. I mean, what James and Ruth have done in that script. It's as good as anything, because it combines incredible character studies with tight, tight plot.'

After 17 years, Gavin & Stacey will finally come to an end on Christmas Day, with one last episode to say goodbye to the beloved comedy.

The upcoming special will mark the BBC 's sitcom's return for the first time in five years and fans are desperate to know what writers James and Ruth have planned.

At the climax of the last Christmas episode in 2019, Nessa Jenkins got down on one knee to propose to Smithy, but viewers never got to hear his response.

And while viewers were left with a host of unanswered questions, the finale is sure to wrap up many loose ends.

Despite the producers and cast working hard to keep the finale's key storylines under wraps, there's several details that have been confirmed for fans to look forward to.

The BBC has released a synopsis of the upcoming special, teasing a reunion between the Shipmans and the Wests.  

It reads: 'The final ever episode of this much-loved comedy classic. It's five years since we left Nessa down on one knee declaring her love for Smithy and asking him to marry her...

'And a lot has happened in those five years. In Barry, Bryn's packing the Picasso in readiness for a trip to Essex, Stacey and Gavin are looking for new ways to spice up their 17-year marriage, and Gwen is behaving most strangely.

'Nessa's started a new business venture and Neil the Baby's about to begin an apprenticeship with his dad...

'Over in Billericay, Pam is stressing out at the prospect of playing hostess, not helped by a newly retired Mick practicing his golf swings in the living room, and there have been more ups and downs in Pete and Dawn's relationship.'

The 2019 special's massive cliffhanger has kept viewers desperate for answers about Nessa and Smithy for years.

The pair had an on-off relationship during the series after several unplanned one-night stands led to their son, Neil the Baby.

In the last episode, which caught up with the characters 10 years after the previous instalment, it was revealed they were successfully co-parenting their son.

And as the family gathered in Barry for the festivities, Nessa got down on one knee to ask Smithy to marry her, with the special ending before we got to hear his answer.

Star and co-creator Ruth Jones has confirmed the episode will pick up exactly where it left us, meaning we will finally get to know what happened next.

So far nothing has been given away, except a short clip in the trailer showing Smithy and Nessa sharing a flirtatious moment together while dancing alongside the other characters.

But the biggest hint that the pair are finally going to get their happily ever after is snaps of the cast filming what appeared to be a wedding.

Many of the stars were seen boarding the famous Dave's Coaches to head to the church for the big day, all dressed to the nines.

While the original series' episodes were 30 minutes long, fans will be treated with a super-sized 90-minute finale to properly say goodbye.