It’s very much in the vein of similar docos that have been made on the UK crossrail project. So while it not quite ground breaking TV (har har), it’s definitely a well produced doco with lots of behind the scenes footage of the TBMs, new animatics and lots of interviews with the engineers and project leaders.
It does seem to skip around project timeline quite a bit, but it’s certainly a pleasant surprise to see Sydney’s public transport getting this much attention, it’s free to view as well.

https://www.sbs.com.au/ondemand/program/sydneys-super-tunnels
I notice Michael Portillo has been in town too, but perhaps that’s a separate thread.
