Is MasterChef Australia free to watch?

Yes, MasterChef Australia (2009) is free to watch on UKTV Play in the UK with no subscription required.

Where can I watch MasterChef Australia in the UK?

MasterChef Australia (2009) is available to stream on UKTV Play in the UK.

Yes, MasterChef Australia (2009) is currently available to stream on UKTV Play UK.

Yes — it's on UKTV Play

Available to stream now

Reality

Is MasterChef Australia free to watch?: Yes, MasterChef Australia is free to watch on UKTV Play in the UK with no subscription required.
Where can I watch MasterChef Australia in the UK?: MasterChef Australia is available to stream on UKTV Play in the UK.
Is MasterChef Australia on UKTV Play UK?: Yes, MasterChef Australia is currently available to stream on UKTV Play UK.