I've lived in or visited 13 different countries and 34 different US states, and all have their own unique flavors and cultures. Even though their everyday lives may be roughly similar, there are a lot of differences in traditions, history, food, leisure activities, etc. If you're trying to encourage tourism, like Oprah was, then you emphasize those differences, because that's what people who want to travel want to experience. There's nothing wrong or patronizing in that.
I agree, KenveeB. Although to be honest, to me Oprah comes across as patronizing most of the time - on her show, and just in general. I think it's just her manner. It's very hard to put my finger on, but there's a certain type of talk-show gushiness she has that doesn't go over so well with some Australians. Our 'style' tends to be a little more reticent and therefore she can seem insincere.
That said, I don't think she patronized Australia or Australians in particular, and her visit can only have been a good thing for our country, economically.
I'm American and feel this way about Oprah too. Her talk show was good when it first started all those many years ago, but I haven't watched in years for the reasons you stated. Over the years I got the feeling she fell into her own hype and now looks down on us "little people." Her
fans who blindly follow everything she says just help feed the beast. Even when she does nice things, I just get a sense that it's for her image; not a sincere desire to do a good thing for the other person. Like you said, those of us who are not fans can't put our fingers on it but still sense something is just off...