I've got to say, I don't think the accents in the clips are particularly strong. I come from Smethwick originally, on the edge of the Black Country (it was in Staffordshire when I was a kid so I'm proud to call myself a Yammer) - my nan was incomprehensible when she was annoyed. I remember her telling me to 'shurrup, yowve gorra vice lark a gratin under a dower'.