The Mountbatten's dog changes breed numerous times during the miniseries: from a Sealyham Terrier to a West Highland White Terrier and back again. The most notable transformation is when he gets on the plane in England as a Sealyham Terrier and gets off the plane in India as a West Highland White. Since the differences are readily apparent (both are white but a "Westie" has prick ears and a square body and a Sealyham has drop ears and a long, low body) the "canine transformations" are quite noticeable.