I haven’t had an arial lead for my tv for a long time but have an Apple TV and so have actually been watching commercial tv through that (the tv app aggregates all shows so you can use it as a bit of a TV guide, and it seems to come preloaded with the app for each of the Australian stations).

I haven’t configured this setup, but when I watch the shows delayed on my pc (on delay, not live) the ads are blocked due to my browser ad blocking - which shortens the overall length of the show as they seem to be injected rather than part of the stream