When Geraldine shows the Vicar Jeremy her birth certificate her name is Geraldine Julie Andrews Dick Van Dyke Supercalifragilisticexpialidocious Chim Chim Cheree Granger. However in the first series Geraldine told everyone that she was embarrassed by her first name and always went by her second name - her first name was Bodicea Geraldine Granger.
In S3E3 - Spring, Geraldine tells David that her "real first name" is Bodecia, during the wedding rehearsal, when asked for her full name, she produces a document that says her name is "Geraldine Julie Andrews Dick van Dyke Supercalifragilisticexpialidocious Chim chiminey Chim chiminey Chim chim cheree Granger"
When explaining Geraldine's joke, Harry tells Alice that 'ahead' is an adverb when it's actually an adjective.
Jim says that the so called 'Great Power Cut' of 2001 (which only affected him due to not paying his bill) lasted 8 months. It seems highly implausible that he wouldn't have noticed in all that time that no one else in the village was affected.