The shows that get on-screen warnings for non-PC content seem pretty random too. I've mentioned that the UK channel currently showing Dukes includes a warning at the start, but I don't think they include one with CHiPs, which is from the same era. Another of their shows, an innocuous British sitcom from the late-80s/early-90s, also gets a warning (I'll have to see it again to check the message). The show is based around a man in his 50s dating someone half his age, but I can't see what content might be offensive.
I'm considered old-fashioned these days because I'm still adding to my DVD c