The A Word is one of those TV dramas that subtly tugs at the heartstrings. Since it last aired in 2017, fans have been eagerly stopping members of the cast on the street to find out when the poignant show - about an autistic boy called Joe and his family - would be back.
Finally, the third series - once again written by Peter Bowker - is hitting our screens and you can expect it to be as moving as ever.
"This programme has connected me with the public like no other, because everybody seems to be touched in some way, by autism or Down's syndrome," says Salford-born star Christopher Eccleston, who plays grumpy-but-loveable grandad Maurice Scott.
"People are going to be watching it in lockdown and it's about families being on top of each other and involved in each other's lives - it will be quite an interesting reaction."
Eccleston co-stars with Pooky Quesnel, Sarah Gordy and Leon Harrop. Quesnel plays music teacher Louise Wilson, Maurice's girlfriend, and a single parent to her son Ralph (played by Harrop), who has Down's syndrome.
This series, her story revolves around Ralph's independence, as she discovers in episode one that he plans to marry his girlfriend Katie (played by Gordy).
"I've got a friend who's an educational psychologist and when I first got the script and I said, 'Ralph's going to get married', she went, 'Oh God, Louise won't like that - the parents I know, they really, really struggle letting the kids have their independence, because their whole life has been defined, and their whole selves have been defined, in this carer role. All of a sudden, they've got to release the reins - and Louise is the uber-control freak."
Eccleston notes he has enjoyed seeing Harrop carry so much of the storyline in the third series.
"Watching Leon grow as an actor and a person, it's great, and feeling Pete's confidence in writing, 'Leon can do this, Leon can do that' and me and Pooky stepping back."
Quesnel nods in agreement: "What's really touched me about it is how Leon's confidence and the way his brain works has developed and matured because somebody put faith in him and said, 'Yes, of course you can do it. Here you go, here's your platform.'"
We all love a good TV wedding - and Ralph and Katie's promises to be one of the most iconic on-screen moments of the year.
"Filming the wedding scenes? Well, there was a lot of hanging around, but it was worth it," recalls Gordy. "So romantic; my heart was bursting when I made my promises to Ralph. And the dress, I love it.
"Katie doesn't like the usual white wedding dress; she is a rebel wearing brilliant burgundy silk and boots. I think Ralph will have his hands full."
Harrop shares he has many favourite moments from filming the wedding episode.
"Glory, glory Man United, the wedding dance, dancing to Steps. My first screen kiss I was a bit nervous, but it was good. It was just three days of fun really, plus I got to work with the brilliant Sarah Gordy."
What really radiates from the cast is the tight bond they have formed.
"There is such warmth on set with Pooky, Chris and Leon - they are like a real family," says Gordy. "They made me feel part of it immediately, asking if I wanted to practise my lines with them or anything.
"Meeting Leon was great, it was like I had always known him. We video chat a lot during this coronavirus stuff. I really miss them all, but will see them soon on telly."
Discussing Maurice this series, Eccleston explains: "At the grand old age of 56, he's involved in a settled relationship again and his children are all falling apart. He's quite bewildered by that.
"And then he sees it happening to Louise - the empty nest syndrome. And, of course, he tries to fix it, which is always a bad idea on Maurice's part."
They must become really invested in these characters, as they intertwine with their own lives, I suggest.
"Yeah. And that's what Peter's strength is - he writes about ageing and sudden changes in people's lives, and communication," says Eccleston.
"I joke with Chris that he morphs into what I call the Maurice-Chris hybrid," Quesnel agrees.
"And by the end of shooting, he's just this weird composite of the two characters and you don't know where one begins and the other ends.
"It's good - it's like he walks on set and he goes two foot taller and he has all this energy."
"I've spoken to Pete a couple of times and said, 'I think it's a bit broad, this performance'," adds Eccleston. "He said, 'Well, that's Maurice!'"
The former Doctor Who star points out that The A Word is the longest job he's ever done.
"We've made 18 hours of telly, playing these characters.
"A lot has happened to me in the last five years, between 52 and 57, and similarly with Maurice. At the beginning, he was grieving his wife, he'd lost any sense of anchor and then we see him meet Louise. Loads has happened. It's odd playing a character for this long."
He later touches on how supportive The A Word team - and Quesnel in particular - were about his mental health issues.
"I got poorly towards the end of the first series and then I think the second series was only the second job since I came out of hospital."
The cast are hopeful they'll get to work together again on The A Word in the future.
Meanwhile, what Quesnel has realised from playing Louise is that, especially with Peter Bowker's writing, "you've just got to be in the moment".
She muses: "You can't think, 'I'm going to play that scene like that,' because somehow it has its own alchemy once the characters get on set with the script.
"And the less you plan it, and the more you just give yourself to it, and especially with Down's syndrome actors, because they are so spontaneous and un-contrived. That's what I really think I've learned from this: just trust the moment, trust the script and trust your fellow actors."
The A Word, BBC One, Tuesday, 9pm