EIGHTEENTH SEASON

5T. The Keeper of Traken
5V. Logopolis

NINETEENTH SEASON

5Z. Castrovalva
5W. Four to Doomsday
5Y. Kinda
5X. Visitation
6A. Black Orchid
6B. Earthshock
6C. Time-Flight

TWENTIETH SEASON

6E. Arc of Infinity
6D. Snakedance
6F. Mawdryn Undead
6G. Terminus