* Climate Change Freeview Video Interview 2006 – Sherwood Rowland, Nobel Laureate ( 1995 ) for work on ozone depletion discusses climate change.

* Freeview Video ' Nuclear Power Plants — What's the Problem ' A Royal Institution Lecture by John Collier by the Vega Science Trust.

* Freeview Video Interview 2006 Sherwood Rowland, NL, discusses Climate Change.

* Kuniaki Nagayama, Freeview Video ' Self-Assembly: Nature's Way To Do It, A Royal Institution Lecture by the Vega Science Trust.

* Freeview Video ' Face to Face with Gustav Born ' by the Vega Science Trust

They do have some drawbacks however: they are slower than more modern boxes with faster processors ( ONdigital receivers often take several seconds to change channel for example ) and lack support for the full Freeview Electronic Programme Guide, as this feature was introduced well after the ONdigital receiver software was written.

* ' Andrew Spielman, Harvard School of Public Health, discusses environmentally friendly control of Malaria and uses of DDT Freeview video provided by the Vega Science Trust

* Freeview video ' Electron Waves Unveil the Microcosmos ' A Royal Institution Discourse by Akira Tonomura provided by the Vega Science Trust

' Freeview video by the Vega Science Trust and the BBC / OU.

* An Interview with Roderick MacKinnon Freeview video by the Vega Science Trust.

* ' Theory of Everything ' Freeview video by the Vega Science Trust and the BBC / OU.

New channels broadcast by the commercial networks in addition to the ones listed above are available on the digital service called Freeview ( Australia ) to viewers in Traralgon and the Gippsland

* CFCs and Ozone Depletion Freeview video provided by the Vega Science Trust.

The technical specification for Freeview is published and maintained by the Digital TV Group, the industry association for digital TV in the UK who also provide the test and conformance regime for Freeview, Freeview + and Freeview HD products.

Freeview channels can be received at no charge ( other than the annual television licence required for television reception required for all viewers of broadcast television in the UK which must be purchased by anyone who has and uses the appropriate equipment to receive television signals ).

A subscription-based DTT service, Top Up TV, launched in March 2004 using unused channel space on multiplexes that were owned by parties who, at the time, were not members of the Freeview consortium.

It was possible to receive Top Up TV on selected Freeview set-top boxes or televisions equipped with a card slot or CI slot, however, this was replaced in 2006 by " Top Up TV Anytime ", a service which requires a proprietary set top box.

These channels, although available only to subscribers with appropriate equipment, are listed in the on-screen electronic programme guides displayed by many Freeview receivers but may not be viewed.

Freeview +, originally entitled " Freeview Playback ", is a consumer brand for the specification of Digital Terrestrial Recorders which is published and maintained by the Digital TV Group.

With two channels ( BBC HD and ITV1 HD ) Freeview HD completed a " technical launch " on 2 December 2009 from Winter Hill ( as a full power service ) and Crystal Palace ( as a reduced power temporary service ) and operates on multiplex BBC B ( aka Multiplex B or PSB3 ) from that date in regions that switched-over on or after that date, with the service coming to all regions by the end of 2012.

The BBC temporarily used the space to broadcast a high definition simulcast of their main Freeview red button feed for the duration of the 2012 Summer Olympics, followed by a channel from Channel 4 for the 2012 Summer Paralympics.

In August 2009 the BBC wrote to Ofcom after third-party content owners asked the BBC to undertake measures to ensure that all Freeview HD boxes would include copy protection systems as required by the Digital TV Group's D-Book, which sets technical standards for digital terrestrial television in the UK.

The BBC proposed to ensure compliance with copy-protection standards on the upgraded Freeview HD multiplex by compressing the service information ( SI ) data, which receivers need to understand the TV services in the data stream.

* ' Birds in Flight and Aeroplanes ' by Evolutionary Biologist and trained Engineer John Maynard-Smith Freeview video provided by the Vega Science Trust.

* ' An Interview with Kurt Wuthrich Freeview video by the Vega Science Trust

* Freeview video ' An Interview with Leo Esaki ' by the Vega Science Trust

* Interview with Manfred Eigen by Harry Kroto, NL Freeview video provided by the Vega Science Trust.

* Professor Andrew Speilman, Entomologist, Harvard School of Hygiene and Public Health Freeview Malaria video by the Vega Science Trust.

Freeview video by the Vega Science Trust.

8 Freeview Lectures provided by the Vega Science Trust.

* Jonathan Hare's work with the Vega Science Trust Freeview Science Programmes.

* Freeview video ' An Interview with Nicolaas Bloembergen ' by the Vega Science Trust

* Freeview video ' An Interview with Rudolph Marcus ' by the Vega Science Trust

* Freeview video ' An Interview with Martinus Veltman ' by the Vega Science Trust

* CFCs, Ozone Depletion and Global Warming Freeview video interview with F. Sherwood Rowland provided by the Vega Science Trust.

* Sir Richard Friend, Cavendish Professor — Freeview tutorial and interview with Richard Friend by the Vega Science Trust

* Freeview video interview with Walter Kohn by the Vega Science Trust

* Freeview video ' An Interview with Erwin Neher ' by the Vega Science Trust

* Interview with Roderick MacKinnon by Harry Kroto Freeview video provided by the Vega Science Trust.

BBC Red Button is broadcast on all digital television platforms in the UK, including digital cable ( DVB-C ), IPTV ( TalkTalk TV – channel 503, no red button or teletext ), digital satellite ( DVB-S ) ( Sky & Freesat ) and digital terrestrial television ( DVB-T ) ( Freeview ).

A consortium made up of the BBC, BSkyB and Crown Castle International was granted ITV Digital's old broadcasting licence, and launched the Freeview service on 30 October 2002, offering 30 free-to-air TV channels and 20 free-to-air radio channels including several interactive channels such as BBCi and Teletext but no subscription or premium services.

Freeview officially launched on 30 October 2002 at 5 am when the BBC and Crown Castle ( now Arqiva ) officially took over the digital terrestrial television ( DTT ) licences to broadcast on the three multiplexes from the defunct ITV Digital ( originally called ONdigital ).

The founding members of DTV Services, who trade as Freeview, were the BBC, Crown Castle UK ( now part of Arqiva ) and British Sky Broadcasting.

On 3 November 2010, BBC One HD launched on Freeview HD.

Between 22 and 23 March 2011, an encoder software change allowed the Freeview version of BBC HD to automatically detect progressive material and change encoding mode appropriately, meaning the channel can switch to 1080p25.

The BBC had suggested that as an alternative to the SI compression scheme, the Freeview HD multiplex may have to adopt encryption.

On 14 June 2010 Ofcom agreed to allow the BBC to limit the full availability of its own and other broadcasters ' high definition ( HD ) Freeview services to receivers that control how HD content can be used.

On 16 August 2002, the licences were granted to members of the Freeview consortium, with BBC getting multiplex B and Crown Castle getting multiplexes C and D.

The BBC today runs eleven national domestic radio stations, six of which are only available in a digital format: via DAB Digital Radio, UK digital television ( satellite, cable and Freeview ) plus live streams and listen again on the Internet.

The BBC has tried to reuse the old Ceefax page numbers where possible on the Freeview and digital satellite BBC Red Button Ceefax-replacement services.

Its replacement, BBC Red Button, is available on most digital services including Freeview, Virgin Media, Sky and Freesat.

Poor ratings in comparison to BBC News 24 and Sky News, and ITV's desire to re-use the channel's allocation on Freeview, were cited as the reasons.

BBC One HD is available on all digital television platforms offering HD channels – Freesat, Freeview HD, Sky, Smallworld Cable, UPC Ireland and Virgin Media.

BBC Four is a British television channel operated by the British Broadcasting Corporation ( BBC ) and available to digital television viewers on Freeview, IPTV, satellite and cable.