BBC Four HD SkyTV

Programmes start at 7.00pm. [HD]

3/6. Series about the creatures that live in China's most beautiful landscapes. This episode looks at the remote Tibetan Plateau, home to chiru antelopes, wild yaks and bears. [S,AD] [HD]

3/3. Samira Ahmed goes back to when Persia faced her gravest threat, Genghis Khan, and reveals how the Safavids, who succeeded the Mongols, give Iran a powerful new identity. [S,AD] [HD]

Robert Robinson hosts as Frank Muir, Joanna Lumley and Miles Kington face Patrick Campbell, Rula Lenska and Ian Wooldridge in the panel game of word definitions and deceptions. [S]

Joseph Cooper invites viewers to match their musical wits against guests Joyce Grenfell, Richard Baker and Robin Ray. With guest musician Lina Lalandi. [S]

With unique access to Nasa, Brian Cox follows Perseverance rover's search for life on Mars during a critical seven-day period as it undertakes an epic journey across the red planet. [S,AD] [HD]

Film following Nasa psychologist Dr Al Holland as he prepares Mars-bound astronauts for the psychological demands of a three-year absence from Earth. [S] [HD]

First transmitted in 1987, what is the future of manned space flight one year after the US Challenger disaster? [S]

Joseph Cooper invites viewers to match their musical wits against guests Joyce Grenfell, Richard Baker and Robin Ray. With guest musician Lina Lalandi. [S]

2/6. Archaeologist Julian Richards joins an excavation team as they uncover a rare find from a fourth-century Roman cemetery in Winchester: a lead coffin. [S]

3/3. Samira Ahmed goes back to when Persia faced her gravest threat, Genghis Khan, and reveals how the Safavids, who succeeded the Mongols, give Iran a powerful new identity. [S,AD,SL] [HD]

Programmes start at 7.00pm. [HD]

Programmes start at 7.00pm. [HD]

7/15. Michael Portillo continues his railway exploration of the postwar Britain of his youth on a journey from London to Cambridge, starting at South Bank. [S,AD] [HD]

1/5. Explorer Paul Rose sets off on the walk of a lifetime - 630 miles of the South West Coast Path, discovering wildlife, wild traditions and wild adventure along the way. [S] [HD]

6/8. Classic political sitcom. Jim Hacker faces embarrassment when Sir Humphrey tells a bigwig friend in the arts that the government is planning to cut grants. [S]

7/8. Jim Hacker decides to abolish the Department of Education and Science to reduce bureaucracy and save money, giving cash directly to schools. Sir Humphrey, of course, is appalled. [S]

3/4. Using 60 years of BBC archive, Vanessa Collingridge examines the life of Elizabeth Tudor. [S,AD] [HD]

A Storyville documentary that revisits the 1994 scandal that embroiled competing US Olympic figure skaters Nancy Kerrigan and Tonya Harding. [S] [HD]

2/2. By the late 1880s, the buffalo teeter on the brink of extinction. [S] [HD]

7/15. Michael Portillo continues his railway exploration of the postwar Britain of his youth on a journey from London to Cambridge, starting at South Bank. [S,AD] [HD]

1/5. Explorer Paul Rose sets off on the walk of a lifetime - 630 miles of the South West Coast Path, discovering wildlife, wild traditions and wild adventure along the way. [S] [HD]

3/6. Series about the creatures that live in China's most beautiful landscapes. This episode looks at the remote Tibetan Plateau, home to chiru antelopes, wild yaks and bears. [S,AD,SL] [HD]

Programmes start at 7.00pm. [HD]

Programmes start at 7.00pm. [HD]

8/15. Michael Portillo ventures deep underground onto London's newest railway: the Elizabeth Line. He travels across London before transferring to the Epping Ongar Heritage Railway. [S,AD] [HD]

2/5. Five-part series in which explorer Paul Rose walks the South West Coast Path. Here, he explores the rugged north Cornish coast and takes a grand tour of Tintagel Castle. [S] [HD]

2/4. Brian Cox looks at our attempts to discover whether we are alone in the universe. [S,AD] [HD]

2/6. Explorer Bruce Parry travels to the frozen tundra of Northern Siberia, spending a month with a brigade of Nenet reindeer herders during their winter migration. [S,AD]

5/6. Seminal 1982 spy drama series. Smiley is hot on the trail leading to Karla but must make the ultimate sacrifice - cutting off his wife Ann. [S]

6/6. Seminal 1980s spy drama series. The final confrontation between Smiley and Karla takes place. But in this game there are no victors, only losers. [S]