There was a little known detective TV show back in the 70s called "The Streets of San Francisco". It would be all forgotten if not for one episode called "Dead lift".
The episode is about a bodybuilder with deep psychological problems, which goes ape crazy and kills a girl which invited him on some sort of creepy date at her house. Arnold Schwarzenegger of course plays the role of the girl.
Gotcha... of course he plays the muscle man and he does it spectacularly. This is one of Arnold's first TV appearances ever and it is extremely well done. "Dead lift" was probably the reason why steroids got a negative opinion. Arnold's acting is so convincing people actually think bodybuilders get mad like this on a daily basis. There are rumours that the actress which plays the victim had bones broken in 73 places after this scene. Arnold asked to comment the incident said she was lucky she didn't shit her pants also and then went on to smoke a cigar. True story.