Blah, DAB is MP2 vs AAC for DAB+. I guess that's one advantage of Australia lagging so far behind the rest of the world in radio+TV - I'm pretty sure we went straight to DAB+.
There's some documents available under FOI (posted online) that have some further info on H.264 in digital broadcasts in Australia.
Frustratingly, my TV isn't compatible, but a much older set top box (purchased to avoid silly DRM) works fine.