New Zealand's Prime television channel has posted a statement on Facebook regarding the 50th Anniversary Special.
BBC Worldwide issued a statement last week in which they announced an intention to simultaneously broadcast the Anniversary Special internationally.

What this means for New Zealand viewers is that if - hypothetically - the Special screens in the UK on Saturday 23rd November at 7pm, the episode would be seen on Prime on Sunday 24th November at 8am.

It remains unclear at this stage whether the episode will in fact screen at the same time in New Zealand. Prime has addressed this in a follow-up statement:
In New Zealand, new series episodes of Doctor Who invariably receive a PGR (Parental Guidance Recommended) rating, which makes them unsuitable for an early morning timeslot on Prime.

The 50th-anniversary episode of Doctor Who is to be broadcast around the world at the same time, it has been revealed.

It is believed the deal has been struck with global networks to prevent any spoilers and plot leaks, and is set to make it the world's biggest drama simulcast when it goes out on Saturday 23rd November.

In a statement, BBC Worldwide said: The episode, whose title is yet to be publicly announced, will be shown in both 2D and 3D.

The time differences around the world mean that an evening transmission in the UK on the Saturday would see it being shown earlier the same day in North America and early on Sunday 24th November in Australia and New Zealand.

Bernard Cribbins will be a guest of Graham Norton on his BBC Radio 2 show on Saturday 8th June.

The veteran actor, who latterly played Wilfred Mott during the Tenth Doctor era but whose link with the show stretches back to 1966 and the film Daleks - Invasion Earth: 2150 A.D., will be talking about both Dalek films of the '60s, which have recently been released on Blu-ray. Cribbins has the unique distinction of being the only actor to have appeared with the Daleks in both the cinema and TV versions of the show.

He is the latest Doctor Who-related guest on the radio programme this year to mark Doctor Who's 50th anniversary and questions - to do with Doctor Who or not - can be submitted via graham.norton@bbc.co.uk

The radio show runs from 10am to 1pm and Cribbins is scheduled to be on air at 12.30pm, but the running order is subject to change. The programme should be available to listen to worldwide via the BBC iPlayer.

UPDATE - SUNDAY 9th JUNE: The interview - which lasts more than 18 minutes - is currently available to listen to via this link. In it, Cribbins reveals there is to be a second series of his CBeebies story-telling show Old Jack's Boat, which also featured fellow former companion actor Freema Agyeman in the first series. In addition, hints are dropped about the radio show marking Doctor Who's 50th anniversary in some way, and Norton pledges that they will involve Cribbins in it.

Based on these final figures, The Name of the Doctor was the second highest rating ABC program of the day and the ninth highest rating program of the day overall (it was also the ninth highest rating program based on its overnight figures of 812,000 viewers). These ratings do not include regional viewers.

Based on these final figures, Nightmare in Silver was the second highest rating ABC program of the day and the twelfth highest rating program of the day overall (it was the fourteenth highest rating program based on its overnight figures of 698,000 viewers). These ratings do not include regional viewers.

Based on these final figures, The Crimson Horror was the second highest rating ABC program of the day and the tenth highest rating program of the day overall (it was also the tenth highest rating program based on its overnight figures of 787,000 viewers). These ratings do not include regional viewers.

Nightmare in Silver has debuted in Australia, averaging 696,000 viewers in the five major capital cities. It was the ABC's second highest rating drama of the day and the fourteenth highest rating program of the day overall. These ratings do not include regional or time-shifted viewers.

The last episode of the current series is to have a prequel, it was announced this afternoon.

Entitled She Said, He Said, it has been written by showrunner Steven Moffat and will feature Jenna-Louise Coleman as Clara and Matt Smith as the Doctor.

According to the show's official website, it will be one of the longest prequels the show has had and will look at "how little Clara knows about the Doctor . . . and vice versa."

The minisode will be made available from the official website and via the BBC's Red Button service straight after Nightmare in Silver ends in the UK this coming Saturday at 7.45pm. Series finale The Name of the Doctor airs in the UK on Saturday 18th May, with the time still to be confirmed.

Based on these final figures, Journey to the Centre of the TARDIS was the highest rating ABC program of the day and the ninth highest rating program of the day overall (it was also the ninth highest rating program based on its overnight figures of 725,000 viewers). These ratings do not include regional viewers.