Although the family lives in Litchfield, Staffordshire, when the family set off for their holiday in Cumbria (170 miles North West of Lichfield), a road sign is seen showing that they are nominally driving on the A1(M) near Welwyn Garden City - over 100 miles drive South East of Lichfield.
This presumably was more of a stock shot error since much of the show is filmed not in Staffordshire, but in Surry and other locales considerably further south of Staffordshire. Google Maps comes close to even suggesting using roads close to Welwyn when driving from Farnham (one of the filing locations) to Cumbria - which may explain the mishap.
This presumably was more of a stock shot error since much of the show is filmed not in Staffordshire, but in Surry and other locales considerably further south of Staffordshire. Google Maps comes close to even suggesting using roads close to Welwyn when driving from Farnham (one of the filing locations) to Cumbria - which may explain the mishap.