It is obvious that the producers of the series wanted to take full advantage of the use of the change to colour and changed the direction of TAOS from slightly film noir crime to pure fantasy. The first of the series has the regulars of the series travel back in time to The Stoneage via a nutty professor's time machine.
It's pretty cheesey fare and indicative of the series on the whole. Gone is any sense of real danger and the darker and relatively violent and suspenseful elements that pervaded the first two series.
However, as if in recompense, at least in this episode, you do get to see Noel Neill's shapely figure and a close up of her rather fetching upper thigh and even a glimpse of her panties. Seems that the censors of the day were unusually lenient - remembering that married couples were always seen in double beds and words like pregnant banned from TV in those days.
We in Australia didn't get to see the series in colour until 1975 but it was a wonderful sight to see Superman in his red and blue outfit. In fact it was in Superman episode that was shown at an exhibition of colour TV that I first witnessed colour TV. What a strangely thrilling thing it was.
Review of Through the Time Barrier
