At the RT Forum, Paul Vanezis has commented on what countries seem useful avenues for missing episode hunting and which do not...
Paul Vanezis Re: Questions about film recovery Thu Sep 18 2008 10:59:35 082.036.042.024
Making enquiries in Australia and New Zealand will not get you very far I'm afraid. This work has been ongoing since the early 1980's and unless you have a 'lead', you'd be better analysing the information from those territories others have collated.
Excepting private collectors, I think both Australia and New Zealand can be ruled out.
If I was starting afresh I would look at the countries for which we have had no contact, but as a rule of thumb, I think you can forget about finding anything in the following countries:
Australia, Canada, New Zealand, Thailand, Singapore, 'Carribean' (the organisation of Carribean Broadcasters), the USA, Iran.
I would also at this stage rule out the southern, central and east African countries as we now have a better understanding of what was screened there and how it was moved between states.
That doesn't leave many countries to be honest. In fact, Venezuela and a robust inventory in Hong Kong would I think provide for a better way to spend your time.