OMG!!!! You think that's bad- we Australians are almost ALWAYS portrayed as "rednecks" or with "redneck" accents in US tv. We dont speak like Steve Irwin! lol
I don't suppose Crocodile Dundee helped either. US shows can be terrible for stereotyping other nationalities. The English are almost alway posh and often play the bad guys.
My favourite American version of a British character has to be Spike from Buffy. Accent and attitude were spot on. He even used to use British swear words. But Joss Whedon did live in England in his youth I believe.