Strange Accents and Units of Measurement

I've been watching snippets of Biggest Loser U.S. Neither Andrew nor I were into "Reality TV" in the States, but I think we gravitated towards it here as a way to familiarise ourselves with Australian society.

They're quite flash with the reality shows here. Excellent cutaways. Very good dramatic presentation. A.J. (the host), Shannon and Michelle are really cool. The White House and Biggest Loser Camp are amazing. They do still repeat everything at least 3 times during the course of the show, so you can miss most of it during the evening, and most of them during the week, and still not be too far behind. I'm guessing they do that in the U.S. version, but I think the station is condensing program to fit into the available time slot.

But something odd is going on. I can relate to the units of measurement better in pounds as opposed to kilos, but B.L.U.S. sounds really strange. The contestents sound odd. Why do these people all have strange accents? The presenter just sounds wrong -- where's A.J.?

Movies sound normal with American accents. News programs are OK too. Top Gear does sound best with the original British triumverate. But television shows apparently sound best in Australian. Who knew?