Writing on Twitter last night, the actress confessed that she is feeling both nervous and excited about shooting the show's festive edition, which is expected to feature the climax to her current revenge storyline.
In recent days, fans have seen Pargeter's feisty character Chas Dingle plotting to get even after discovering that her partner Carl King (Tom Lister) has been having an affair with village temptress Eve Jenson (Suzanne Shaw).
Pargeter told her online followers: "Ooooh big day filming tomorrow, Christmas day!! Glad the weather is looking so crap for the village! Sitting in front of my fire trying to take the warmth into my bones, gonna need it tomorrow!!
"The pressure is getting to me, such a big end to the story - I want to do a good job but having a little wobble and can't learn my lines. I hope you all enjoy it when you're tipsy and full of turkey."
The star insisted that she was unable to reveal any storyline information as the plot of the Christmas episode is currently being kept under wraps.
She added: "Wow so many responses, fingers crossed you enjoy! I'm gonna thank you for all your support."
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