This is a series of programs that teach you about the origins of key forensic techniques. I was surprised that the detection of arsenic went back as far as it does along with the science of ballistics. Blood splatters, stabbing and arson have also been covered.
The open university have many programs about their courses as I have watched many about physics and psychology. The ones about Freud, Nietzsche and Marx were particularly interesting.
Now is a good time to look into educational courses since we all have a lot more time on our hands than usual and need something positive and productive to fill it with. Maybe you will find a new passion or career who knows?