Helen George Teases New Details Of The 'Call The Midwife' Christmas Special

What did we learn? Well, filming for the Christmas special took place in the suitably cosy and countrified setting of the Outer Hebrides. Think quaint thatched rooves and sheep making their way down winding rural lanes.

They filmed for four weeks in total, and Helen George describes the location as "stunning".

"It becomes a character in itself," she told Holly and Phil. "It's so cinematic, and it was really cold. Because the surroundings are just so beautiful that you don't want to ignore it!"

The storyline focuses on the need for medical professionals in the remote rural setting.

"We go up there because there's a small community without any medical healthcare of advisors, nurses or doctors," explained Helen. "There's a community in need so we go up and help in our own way."

In keeping with the country location there are going to be "some scenes with a cow" - plus a few involving babies.

Talking about why viewers have such affection for the show, the actress pointed to the strength of the script and the sheer range of subject matter.

"I think the writing is still really good and there's loads of subjects... I think it holds a mirror up to society. Then there's the nostalgia element. There's all these hard-hitting issues but they're wrapped up in the lovely, warm, cosy Sunday night drama that I think people quite enjoy."

On the subject of the show's longer-term development, Helen discussed the show's "ceiling point" and the potential of a natural end as the series moves towards the present day.

"But you never know, there might be a spin-off," she added, smiling. "I'm joking, don't quote that!"

Don't tease us like that, Helen.