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They have explained that away by him saying that he's been using a sunbed. Presumably Audrey's has some sunbeds in the back of that TARDIS of a salon (as many seem to have these days, apparently).
However, his orange hue does resemble someone with sclerosis of the liver more than one with a healthy tan.
gregmc posted:
David seems to become more orange by the episode.
They have explained that away by him saying that he's been using a sunbed. Presumably Audrey's has some sunbeds in the back of that TARDIS of a salon (as many seem to have these days, apparently).
However, his orange hue does resemble someone with sclerosis of the liver more than one with a healthy tan.