An aggressively mediocre set of First Doctor episodes, Galaxy 4 is entertaining enough, but often for reasons not intended by the production.

This is Peter Purves' least favourite episode as he is largely filling in a part written for Barbara, but it leads to amusing trivia more than it affects the story in any way. Really, it is just kind of boring. The Rills look silly but I do like how readily the TARDIS crew accept them. Otherwise, it is very forgettable content.