very nostalgic episode

I just watch one of my favourite episodes 'return of the Robot Maker.'
At the end when Steve performs a flying kick on a twin of Oscar. Oscar says 'how did you know I was the real Oscar?' The response is 'Robots do not sweat.'
This was a nostalgic scene. It took me back to the mid 70s where I was able to recollect the very moment when the scene appeared. The actual sentence Steve quotes triggered the memory.