It's December 1966, and good tidings are in the air. Following a long engagement, Lucille and Cyril are excited about their upcoming nuptials and can't wait to get married on Boxing Day. However, as the day approaches, nothing seems to run smoothly, and the wedding ceremony itself is put in jeopardy.

While Nancy focuses on her final midwifery examinations, it is all hands on deck as the Nonnatus team prepare for what will inevitably be a busy Christmas. The maternity home is filled with expectant mums-to-be, each with their own challenging case.

As Call the Midwife celebrates its tenth anniversary on screen, the cast and crew, past and present, take a look back at some of their favourite moments from the hit show over the past ten years.

This special programme goes behind the scenes at Nonnatus House and gives viewers an insight into how the costume, design, music and make-up teams work to finesse every detail seen on screen. And there's a chance to relive some of the weddings, births and most memorable moments of this extraordinary TV show that has love, family and community at its heart.

While Nonnatus House struggles to come to terms with Nancy's revelation, the housing conditions in Poplar reach crisis point. A birth causes a rift in a close-knit family.

It's September 1966, and at clinic Trixie is tasked with examining a desperate woman who is pregnant with her fifth child. Trixie learns that her patient's personal life is far from stable, compelling her to speak out publicly. However, the results garner mixed reactions from Nonnatus House and the community. 

Dr Turner and Sister Frances are entrusted to help a mother-to-be who refuses medical care through her final weeks of pregnancy, and Nancy Corrigan reveals a secret about her background that could threaten her relationship with Sister Julienne and Nonnatus House. 

With sister Hilda away on a refresher course, sister Julienne steps in to carry out home visits. The new pupil midwives are settling in well, and there is a sense of hope in the air.

While examining expectant mother Vera Sands during a routine visit, sister Julienne is concerned by her toddler daughter who is displaying troubling symptoms. Determined to find out what's wrong, sister Julienne and Dr Turner are on the case.

Meanwhile, an overly protective mother struggles to cope with her daughter's teenage pregnancy and is insistent on keeping it low key, much to the frustration of new pupil midwife Nancy Corrigan.

It's July 1966, and Britain is in the grip of World Cup fever. Unbeknown to Violet, Fred puts on an accumulator bet for the World Cup which keeps any winnings rolling forward. When England reaches the final against West Germany, Fred questions whether he has made the right decision.

Nonnatus House awaits the arrival of four new pupil midwives. One of them, Nancy Corrigan, makes quite an impact.

Meanwhile, Cyril and Lucille's relationship continues to blossom.

It's May 1966 and at clinic Shelagh examines an overweight lady who is expecting her third child. Concerned about her weight gain and subsequent symptoms, she discusses the case with Lucille, who comes across a new discovery.

Dr Turner and Sister Hilda are flummoxed by a young patient whose health presents a series of challenges. They become increasingly concerned and do their best to get to the bottom of her unexplained ill health.

Trixie befriends a patient during a delivery, but is troubled by the news that she has subsequently been readmitted to the Lady Emily after collapsing unexpectedly at home. Sister Frances decides she needs to know more of the outside world if she is truly to understand her patients' needs, and Cyril and Fred come to the aid of a family who have been evicted from their home - although Violet is less than happy about their acts of charity.

Change is on the horizon in Poplar. Sister Julienne must determine whether a private clinic venture that will generate much needed income for Nonnatus House is a suitable workplace for the Sisters, and enlists the help of Trixie.