Beldoron
According to the script for the  third season episode , Beldoron was an inhabited planet with a consulate.

According to an unauthorized biography of Doctor Paul Stubbs, this doctor had an affair with the consul's wife. The doctor denied the affair saying that he was a good friend of hers. 

The lines in which the planet were mentioned were deleted from the final episode. The scene in which these lines were said can be seen at . 
Deleted material