Call The Midwife's success still manages to shock Helen George.
The actress - who plays nurse Trixie Franklin - admits she and the rest of the cast are amazed that the period drama has continuously managed to pull in high viewing figures after three years on air.
She said: "After the first episode of this series we were all saying how crazy it was to get such a ridiculously high figure three years in. There's always a sense of waiting for people to go, 'Actually, we're over this now', but luckily that hasn't happened yet."
Helen's character, Trixie, is currently being wooed on screen by newcomer Tom (Jack Ashton) and she has found the romantic scenes difficult.
She explained: "I find it really nerve-racking. Tom was my first screen kiss and it was mortifying. All the cast and crew were there wolf-whistling. And watching yourself kissing is the weirdest thing."
When she isn't playing a 1950s east London midwife, Helen loves watching American shows such as 'Girls' and 'Keeping Up with the Kardashians'.
She told Radio Times magazine: "I love 'Girls'. The writing's so clever. I think Lena Dunham is a genius, I can't believe she writes it, directs it and stars in it.
"I don't agree with everything [the Kardashians] stand for but I did shed a tear when Kris and Bruce [Jenner] announced they were getting a separation."
Tagged in Jessica Raine Helen George