Knock Knock has debuted in Australia, averaging 417,000 viewers in the five major capital cities. The story was the second highest rating ABC drama of the day and the twelfth highest rating program of the day overall. These ratings do not include iview, regional or time-shifted viewers. The binaural edition of Knock Knock, with enhanced sound, is also now available on ABC iview.

Meanwhile, including time-shifted viewers, Smile averaged 574,000 consolidated viewers in the five major capital cities. With 110,000 extra viewers it was the highest time-shifted program of the day (the second highest time-shifted program had 104,000 extra viewers) and the eighth highest rating program of the day overall. These ratings do not include iview or regional viewers.

Doctor Who - Knock Knock had an overnight viewing audience of 4.32 million viewers, a share of 24.9% of the total TV audience, according to unofficial figures. Doctor Who increased its audience by half a million from the previous week.

Top for the day was once more the ITV variety show Britain's Got Talent with 9.35 million viewers. Doctor Who was top for BBC One for the evening, with Pointless Celebrities getting 4.20 million watching, while Casualty managed 4.02 million.

Former Doctor Who producer Philip Hinchcliffe has been honoured with an award for outstanding contribution to the programme, presented by the Doctor Who Appreciation Society, or DWAS.

Hinchcliffe was the producer of Doctor Who from 1975-1977, one of its most fondly remembered periods. He was producer while the DWAS was being formed by a group of students, anxious to discuss and celebrate their favourite programme.

Presenting the award at the DWAS convention, The Capitol, being held in Crawley, one of the founder members of the society, Jeremy Bentham spoke of the support the fledgling organisation had received from the Hinchcliffe and the BBC. That support helped enable the group to grow from a small college based club, to become a national society approved by the BBC. The group had been invited to visit the production office to meet the team and to discusses the series. A mention in the Radio Times in the listing for Masque of Mandragora, brought huge numbers of new membership applications.

Accepting the award Philip Hinchcliffe said.Script writer Bob Baker was also presented with an award for outstanding contribution to Doctor Who for his work on the series, in particular his creation of K-9, who celebrates his 40th Anniversary later this year.

Knock Knock: Known Broadcast Details
United Kingdom	BBC One	Sat 6 May 2017	7:20pm BST
Middle East	BBC First	Sat 6 May 2017	9:20pm AST	(Sat 7:20pm BST)
United States of America	BBC America	Sat 6 May 2017	9:00pm EDT	(Sun 2:00am BST)
Canada	SPACE	Sat 6 May 2017	9:00pm EDT	(Sun 2:00am BST)
Finland	YLE2	Sun 7 May 2017	11:00am EEST	(Sun 9:00am BST)
Australia	ABC	Sun 7 May 2017	7:40pm AEST	(Sun 10:40am BST, also on ABC ME)
Brazil	SyFy	Sun 7 May 2017	8:00pm BRT	(Sun 11:00pm BST)
Latin America	SyFy	Sun 7 May 2017	11:00pm CDT	(Mon 4:00am BST)
New Zealand	PRIME	Sun 7 May 2017	7:30pm NZST	(Mon 8:30am BST)

A special 3D sound mix of this week’s episode makes it feel as if you’re part of the action, according to a group of Welsh students.

Speaking at an exclusive screening of the binaural audio edition of episode four, Knock Knock, the students called it a great experience, saying the enhanced version sounds as if at any minute the monsters could be coming after you.

The enhanced binaural audio episode will be available on BBC iPlayer immediately after the adventure premieres on BBC One and BBC One HD from 8.10pm on Saturday, 6 May. Viewers can find it by searching Doctor Who Enhanced on BBC iPlayer or visiting: www.bbc.co.uk/doctorwhoenhanced

The binaural edition creates a 3D surround soundscape for anyone wearing headphones, placing the audience at the heart of the action while the bumps, scrapes, shrieks and screams echo around them as if they were actually there. To create the enhanced version, the team used new software developed by BBC Research & Development to artificially mimic the subtle effect the shape of the viewer’s head and ears have on what they hear. This lets sound engineers give the impression of specific sounds like the creaks and groans of the old house in Knock Knock being in front, behind, or all around viewers.

Brian Minchin, executive producer, Doctor Who, said: Catherine Robinson, audio supervisor at BBC Wales, said:

BBC Worldwide have released details on the forthcoming DVD/Blu-ray sets for the current series of Doctor Who:

The actor Moray Watson has died at the age of 88.

Moray Watson appeared in the 1982 Doctor Who story Black Orchid, where he played Sir Robert Muir, the Chief Constable of Oxfordshire and a friend of the Cranleigh family.

Watson was born in Berkshire in 1928. He trained at The Webber Douglas Academy of Dramatic Art and made early appearances in London's West End. In 1953 he made his Television debut, appearing in the much acclaimed BBC series The Quatermass Experiment. A long career in British Television followed including a regular role as the Art Editor, Richard Lowe, in the BBC series Compact. He appeared in Silas Marner, No Wreath for the General, Laughter from the Whitehall, Z Cars and Upstairs, Downstairs as well as many appearances in one-off plays in series such as Thirty-Minute Theatre and The Wednesday Play.

In 1971 he played Lord Collingford in the children's series Catweazle and in 1974 played Barrington Erle in the BBC adaptation Anthony Trollope's The Pallisers. He played Angus Kinloch in the Cold War thriller series Quiller and Chief Constable Chubb in Murder Most English

In the 1980's he played Mr. Bennet in the BBC adaptation of Pride and Prejudice and Wordsworth in the comedy Union Castle. Other notable apperances included parts in Agatha Christie's Miss Marple: The Body in the Library, Minder, Winston Churchill: The Wilderness Years, The Professionals, Rude Health, Rumpole of the Bailey and The House of Eliott.

In 1991 he played the Brigadier in the ITV version of The Darling Buds of May .

He appeared in several films, including Operation Crossbow and The Grass Is Greener, in which he played opposite Cary Grant, Deborah Kerr, Robert Mitchum and Jean Simmons.

Moray Watson appeared in several one-man shows, including The Incomparable Max based on the life and work of Max Beerbohm and Ancestral Voices, based on the diaries if James Lees Milne. His final show, Looking Back and Dropping Names was written and devised by himself based on his own life as an actor. It was published in book form in September 2016.

The BBC has confirmed that this week's episode of Doctor Who, Knock Knock, will be available on the BBC iPlayer in special binaural edition, available immediately after the episode has broadcast on BBC One.

Binaural is a method of sound reproduction that is intended to replicate the way the human brain understands sound to give the listener as natural an experience as possible. Rather than using a series of speakers to reproduce a soundscape, the Binaural process records sound using two microphones separated by the width of a human head. When listening to the replay through headphones, the effect is to replicate the sound going into each ear giving the listener the effect of actually being in the room where the sound was recorded.

The binaural edition of Knock Knock will be available on BBC iPlayer from 8.10pm on Saturday, 6 May.

The binaural process can be heard on the preview clip on the official BBC Doctor Who page. To experience it you need to listen to the clip on headphones.

Official figures released by the Broadcasters’ Audience Research Board or BARB, gives Doctor Who - Smile an official rating of 5.98 million viewers.

The rating includes all those who recorded the programme and watched it within 7 days.

Doctor Who is the 23rd most watched programme for the week, and 8th most watched on BBC One

Top for the week was incoming showrunner Chris Chibnall's Broadchurch, starring David Tennant, which beat ITV's Britain's Got Talent, to take the top place with 11.61 million watching. Unlike last week , Doctor Who sliped behind the soaps EastEnders and Emmerdale as well as Coronation Street.

Doctor Who remained the top BBC One programme for Saturday night, just ahead of the entertainment show All Round to Mrs Brown's

The BBC have released a number of new publicity images to promote this week's episode of Doctor Who, Knock Knock
BBC One continues to show Doctor Who at 7;20pm, with BBC First simulcasting the episode across the Middle-East

Thin Ice: Known Broadcast Details
United Kingdom	BBC One	Sat 6 May 2017	7:20pm BST
Middle East	BBC First	Sat 6 May 2017	9:20pm AST	(Sat 7:20pm BST)
United States of America	BBC America	Sat 6 May 2017	9:00pm EDT	(Sun 2:00am BST)
Canada	SPACE	Sat 6 May 2017	9:00pm EDT	(Sun 2:00am BST)
Finland	YLE2	Sun 7 May 2017	11:00am EEST	(Sun 9:00am BST)
Australia	ABC	Sun 7 May 2017	7:40pm AEST	(Sun 10:40am BST, also on ABC ME)
Brazil	SyFy	Sun 7 May 2017	8:00pm BRT	(Sun 11:00pm BST)
Latin America	SyFy	Sun 7 May 2017	11:00pm CDT	(Mon 4:00am BST)
New Zealand	PRIME	Sun 7 May 2017	7:30pm NZST	(Mon 8:30am BST)

Doctor Who - Thin Ice had an Audience Appreciation or Ai figure of 84

The Appreciation Index in an indication of how much viewers enjoyed the episode. It is based to the reactions of a selected panel of viewers, who rate the episode shortly after transmission.

84 is considered a good score, roughly similar to the scores achieved by the last series of the show,

The highest score for the evening on the two main channels was achieved by Casualty on BBC One which scored 87.