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Additional input from DWM : Episode Guide: The Evil of the Daleks was repeated after The Wheel in Space, from Season 4. The transmission dates were 8.6.68 - 3.8.68, except the 29.6 and 6.7, when there was a break for Wimbledon, not the Olympics.
The first episode had a new introductory voice over by Patrick Troughton and Wendy Padbury. The Dominators linked in directly with this, with the Doctor complaining that the projection of thought patterns was all very tiring!