Good Acting

My definition of good acting is when type cast people can also play the opposite. Or when characters switch bodies, like Freaky Friday. I was watching an episode of Eureka, a sci-fi show where two characters switch bodies. The acting is so good and the episode made me really happy and laugh out loud. The Sheriff switched bodies with the cause of most of his problems. Both actors were able to convincingly portray the other by copying mannerisms believably. I usually don't notice acting and that is the way I think it should be, but I was impressed. Wow, that looks a lot shorter on screen than it felt in my head. Oh well.