The global simulcast audience for the Twelfth Doctor's live unveiling has grown to include Australia and Canada.

In a special one-off television event on Sunday 4 August at 7pm (BST), the next Doctor will be exclusively revealed to the UK live on BBC One.

We can also exclusively confirm that Doctor Who Live: The Next Doctor will be simulcast in the following territories:

Australia

ABC 1 at 4am EST (August 5)

Canada

Space at 2pm ET

United States

BBC America at 2pm ET

The half hour show will include live special guests, Doctors old and new, as well as companions and celebrity fans. Excitement will reach fever pitch as they speculate and recall their favourites, plus feature clips and moments from across the show's 50 year history.

Widely regarded as one of the most hotly contested roles in British television, host Zoe Ball will unveil the Twelfth Doctor in their first ever interview in front of a live studio audience.

For the last of the Time Lords, the clock is striking twelve…