Well, since nobody else has... I guess I will!
"Black on White on Fire" - This episode is the one that sticks out in my mind the most about black vs. white. It's in a big city, and we see the disgusting violence that people can be reduced to when angry (both Lonny and the police chief) and prejudiced.
There are other episodes that are built around racism against African people ("The Colour of Truth", "Justice", "So Help Me God"), but I find that they don't compare to this episode, perhaps because Sam is the one being attacked from both sides (his African family and his Caucasian girlfriend's family). We also get to see a lot of the due hatred toward Caucasians in that area.
"Running for Honour" - A suiting episode for the early '90s, since that seems to be when homosexuality began to come out of the closet, so to speak.
It's another episode about prejudice against minorities that clearly demonstrates feelings at the time against those people, and reminds us in the present of how we can't keep those prejudices going.
An interesting fact about where I live... Ontario just recently made it legal for same-sex couples to be leagally married. It's a deep divide across the country as to whether or not it should be allowed. Maybe some people should watch this episode and realise that everybody has the same right to be married (although, there are restrictions, but this is for the off-topic forum!)
"Lee Harvey Oswald" - I don't find this episode controversial, probably because I don't care too much about the whole JFK/LHO thing. There are so many conspiracy theories surrounding it, it's hard to know what's the truth.
Well, that's all I can muster right now. The rest of you had better off your opinions soon, or Brian will be right angry with you all! :shootem :b
... Mike. ^_^