BBC Four HD SkyTV

Programmes start at 7.00pm. [HD]

5/6. What is the most toxic animal on earth? Why is a rhino armour plated? Professor Ben Garrod discovers the complex ways in which skin helps defend animals against threats of all kinds. [S] [HD]

2/2. Derek Brockway learns how New Quay on Cardigan Bay inspired some of Thomas's greatest work, before touring Laugharne with Dylan Thomas's granddaughter. [S] [HD]

After years in the shadows, UFOs are being studied seriously. Follow scientists as they try to unravel the mystery of the strangest objects in our skies. [S,AD] [HD]

Architect Sir Norman Foster looks at the jumbo jet, a unique 'building' that flies. First broadcast in 1991. [S]

An attempt to restage the first official broadcast on British television 80 years later. [S,AD] [HD]

Dramatisation of the events of 1936, as the BBC prepares for the world's first high-definition TV service. However, behind the scenes at Alexandra Palace complications arise. [S] [HD]

A short film from 1936 that gives viewers an insight into how television came to Alexandra Palace. [S]

Profile of John Logie Baird, the man who invented television, presented by his son Malcolm. Contains scenes of flashing images. [S,AD]

Leslie Mitchell traces the origins of television, from the beginning of the 20th century to the first outside broadcast - the coronation of George VI in 1937. Contains scenes of flashing images. [S]

5/6. What is the most toxic animal on earth? Why is a rhino armour plated? Professor Ben Garrod discovers the complex ways in which skin helps defend animals against threats of all kinds. [S] [HD]

2/2. Derek Brockway learns how New Quay on Cardigan Bay inspired some of Thomas's greatest work, before touring Laugharne with Dylan Thomas's granddaughter. [S] [HD]

Programmes start at 7.00pm. [HD]

Programmes start at 7.00pm. [HD]

6/6. Professor Ben Garrod explores how some snakes can see using heat, how crocodiles feel through their jaws, and how some animals use electricity to navigate their world. [S] [HD]

Poet John Wedgwood Clarke explores the Red River in Cornwall. Despite being heavily polluted by centuries of tin mining, it is also home to some rare, beautiful and resilient wildlife. [S] [HD]

As Britain lives in fear of invasion, squadrons of fighter pilots fend off attacks by air. [1969] [S,AD]

A repressed and bullied teenager discovers that she has special powers. Horror. Contains some strong language, some violence and some upsetting scenes. [1976] [S,AD] [HD]

Master of horror writing Stephen King talks to Mark Lawson about his book Lisey's Story and discusses the inspiration for his novels and how he battled with his own demons. [S]

6/6. Professor Ben Garrod explores how some snakes can see using heat, how crocodiles feel through their jaws, and how some animals use electricity to navigate their world. [S] [HD]

Poet John Wedgwood Clarke explores the Red River in Cornwall. Despite being heavily polluted by centuries of tin mining, it is also home to some rare, beautiful and resilient wildlife. [S] [HD]

After years in the shadows, UFOs are being studied seriously. Follow scientists as they try to unravel the mystery of the strangest objects in our skies. [S,AD] [HD]

Master of horror writing Stephen King talks to Mark Lawson about his book Lisey's Story and discusses the inspiration for his novels and how he battled with his own demons. [S]

Programmes start at 7.00pm. [HD]

Programmes start at 7.00pm. [HD]

Jamie Theakston presents the pop chart programme, first broadcast on 21 July 2000 and featuring The Corrs, Steps, Aaliyah, Darude, *NSYNC, Moloko and Ronan Keating. [S]

Jamie Theakston presents the pop chart programme, featuring Ronan Keating, Savage Garden, Placebo, Shanks & Bigfoot, Destiny's Child, Louise, Robbie Williams and Five & Queen. [S]

David Jensen and John Peel present the pop chart programme, first broadcast on 10 November 1983. Features Musical Youth, Adam Ant, Eurythmics, Limahl, The Cure and Billy Joel. [S]

Simon Bates and Richard Skinner present the pop chart programme. Featured artists include Limahl, Alison Moyet, Billy Ocean, Gary Numan, Eugene Wilde and Chaka Khan. [S]

Noel Edmonds presents the pop chart programme, first broadcast on 26 August 1976 and featuring Manfred Mann's Earth Band, Robin Sarstedt, Acker Bilk and Elton John & Kiki Dee. [S]

In a concert from 1979, Lena Martell performs in the big top at Callendar Park, Falkirk. She is accompanied by The Tony Mansell Singers and Brian Fahey and the Scottish Radio Orchestra. [S]

Portrait of Canadian singer, songwriter, poet and novelist Leonard Cohen, recorded in 1988. Featuring interviews, archive film and live performances from his world tour. [S]

1/4. Compilation of performances from 1970s singer-songwriters, including Don McLean, Tim Buckley, John Martyn, Sandy Denny, Stealers Wheel and Gerry Rafferty and Joni Mitchell. [S]