Doctor Who - Season 23 Episode 4
All those on Ravolox are in exponentially greater peril than anyone can comprehend. If anything in the entire universe is to survive, it may come down to the Doctor arguing against machine logic over the value of life.
First Air Date : 1963-11-23
Last Air date : 1989-12-06
Runtime : 57 minutes
Genre : Drama, Action & Adventure, Sci-Fi & Fantasy
Cast : Sylvester McCoy, Sophie Aldred
Crew : Oliver Elmes (Main Title Designer), Keff McCulloch (Theme Song Performance), John Nathan-Turner (Producer), Ron Grainer (Main Title Theme Composer)
Quality : 
Subtitles :
- Season 23 : Episode 11986-09-06
- Season 23 : Episode 21986-09-13
- Season 23 : Episode 31986-09-20
- Season 23 : Episode 41986-09-27
- Season 23 : Episode 51986-10-04
- Season 23 : Episode 61986-10-11
- Season 23 : Episode 71986-10-18
- Season 23 : Episode 81986-10-25
- Season 23 : Episode 91986-11-01
- Season 23 : Episode 101986-11-08
- Season 23 : Episode 111986-11-15
- Season 23 : Episode 121986-11-22
- Season 23 : Episode 131986-11-29
- Season 23 : Episode 141986-12-06
