Despite having a great head for radio, I was enticed on to TV last Saturday (Dec 29) to talk building cracks with Professor Mark Hoffman (one of the engineers called in to examine the Opal) and host Basil Zempilas.

It's only  five minutes long but we managed to be reassuring and alarming at the same time.

You can watch it here:

https://episodes.castos.com/flatchatpod/Opal-crisis.wmv