The BBC is not a great example of an average media company in the UK. That fact alone means the rest of your post is not particularly valid. The BBC has special guidelines imposed upon it by its special position. Hell, there are amazing amounts of speech on the BBC that are simply illegal in the US on comparable TV stations, just not slipped in to motoring TV shows in order to simply cause offence.
And by "PC" you mean "not being a racist/sexist muppet". Those are values certain societies strive to achieve, which is definitely admirable in itself.