I just don't see the need for that though. I grew up in Aus and our 4 Channels had a good mix of shows from the US, Canada (Degrassi High!!), the UK as well as locally produced programs. I don't really remember ever being aware of the cultural differences between each show and when I first heard a US accent in the flesh I was shocked. I had gotten used to TV talk and had learnt to hear it differently.
While I somewhat agree with your original post, I don't think you can compare the US to Australia. One of the reasons we're culturally isolated, as someone mentioned, is because we're a much larger producer of entertainment than the UK, Australia, or Canada. We're used to everything being from our point of view, in our accents, that when something isn't, it turns people off.
Americans are lazy about their art and entertainment. It's for this reason that subtitled movies don't do as well, either.
For what it's worth, there are foreign shows on cable, particularly BBC America. The Office (UK) was a big hit for them.
My personal "I can't believe they're remaking it" travesty is Spaced.