BBC show that's been on-air for over nine years.The actress revealed she "never signs up for future series" but her character Sister Julienne remains one of the show's stalwarts.The leader of the nuns of Nonnatus House, she has a key role in the set-up, acting as a guiding hand and a moral compass not only for the sisters in her charge but the young midwives as well.But despite it's immense success, the telly star wonders how long it will continue to go on for.In a new interview, ahead of the 10th series which is set to begin on Sunday, Jenny was asked whether she will always want to be a part of the show for as long as it remains on-air.And surprisingly enough, she replied: "Well, I can’t imagine how much longer it can go on for."If we.
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