This is an early Sylvester McCoy story, where he was finally finding his feet as the Doctor, and starting to take him down the darker path.
One slightly tragic aspect of this era of “Who” was the producers constant desire to have celebrity cameos. In other stories, it hurts them a little, but Ken Dodds character in this…well, you can make your own mind up.
This was an enjoyable story, and the character of Ray was just the sort that was best suited as a companion for the Doctor. Of course, Ace arrives in the very next story, and is regarded as one of the best companions ever. Bad timing for Sara Griffiths (the actress playing Ray).
I loved the music score weaved throughout, a contemporary montage of 50's style music, which made the story live.
Oh, and for those of you who think kids are growing up too fast these days, watch this, and count your blessings…