The show promises to be be good, but is very disjointed. The show is very hard to follow as it jumps all over the years in the first episode, starting in 1790 with the landing of the second fleet, with no mentions of the first Australians until about 15 mins in where it jumps back to 45 million years to before 1790. Sadly this continues throughout the show.
To add to the lack of credibility of the show, they have a few experts they talk to about parts of Australian history, but sadly also have people who work for Channel 7 like Andrew O'Keefe and Rebecca Gibney. I agree with having sporting star Adam Goodes in there since he is talking about Aboriginal people, but as for the others, it just seems like they couldn't afford more experts, so just used people who are already employed by Channel 7.