While on Ribos, the Fourth Doctor identified an accent assumed by Garron as that of Somerset. Romana I told him, as Bartholomew's Planetary Gazetteer described Ribos as having "a protected class three society", there couldn't be any "Earth aliens" on the planet. (TV: The Ribos Operation)
Behind the scenes
- Situated on the opposite coast of the Bristol Channel, it is possible to look out onto Cardiff, and even Flat Holm from several locations.
- Actor David Dodimead was born in the town of Shepton Mallet.