At one point in 1933, an alien, retired from defeating evil, spent some time as a guest at Bide-a-Wee. He enjoyed it so much he used temporal technology to keep the guest house and its residents stuck in 1933.
When the First Doctor arrived at Bide-a-Wee, it was 1999 in the real world. The Doctor and the alien restored the guest house to its original time. (PROSE: Bide-a-Wee)