Recently I bought The Ice Warriors and The Moonbase DVD's. Both are cracking stories. especially The Ice Warriors. The animation was appreciated. Personally I liked The Ice Warriors animation better but thats just me.
With regards to the rumor, I see 3 possible announcements of missing episodes, should they exist.
1. The Web of Fear DVD in the next time trailer.
2. Easter (Puqui, Scott and Eddie point to this time).
3 The Underwater Menace DVD in the next time trailer.
After 3, I'll stop believing but as of now I am hoping for the best
