It's late November in Rhode Island, but the trees are green and in full leaf.
The entire timeline is off since it takes hours and hours to cook a turkey, which nobody takes into account. The basic fact may escape Peter the complete imbecile, even though he must have been impatiently waiting for the turkey to finish countless times in his life, but Brian and Lois should definitely be aware of it.
The cartoon character Andy Capp, a flat-cap-wearing northerner, is given a London Cockney accent. An Andy Capp accent would sound almost Scottish to Americans.