Board Thread:The Panopticon/@comment-26975268-20130201045831/@comment-88790-20130306150440

Well, when I said "could" I was presuming that was what your IP editors were doing.

I also need to correct what I've said upthread as I've rechecked and The Green Death is the last story to be titled as "Episode One" and The Time Warrior is where it the individual segments begin to be known as "Part One" etc.

While I can't check every story for you I can present a slightly larger random selection and draw some conclusions based on the information.

The War Machines writes it as "Episode 1".

The Tomb of the Cybermen and The Mind Robber write "Episode 1".

However The Invasion, The Krotons, The Seeds of Death and The War Games writes it out as "Episode One".

Inferno and The Sea Devils both write it out as "Episode One".

Invasion of the Dinosaurs write it out as "Part One".

The Seeds of Doom, The Deadly Assassin, Warriors' Gate, Logopolis, Castrovalva and Survival all also write it as "Part One".

So based on the info I have at hand I think I can say that:
 * The Savages to The Mind Robber use "Episode" followed by a numeral.
 * The Invasion through to The Green Death writes it out in words as "Episode One" etc
 * The Time Warrior to Survival writes it as "Part One".