Gogglebox stars Mary Killen and Giles Wood have been fan-favourites ever since they joined the Channel 4 show back in 2015, but it is their newest family member that has really won over viewers. During the latest episode of the hilarious commentary show, the pair, who are based in Wiltshire and have been married for more than 30 years, introduced their adorable dog Merlin, who quickly melted the audience's heart.