BBC Four HD SkyTV

1/2. Documentary following a group of international archaeologists, who believe that a new state-of-the-art approach is the key to unlocking Stonehenge's secrets. [S,AD] [HD]

The Sky at Night team mark the second anniversary of the release of the first images from the James Webb Space Telescope, finding out what it has told us so far. [S] [HD]

1/4. Documentary series about the effect of medicine on life expectancy. How the development and delivery of the smallpox vaccine eradicated the disease. [S,AD] [HD]

...Living Longer - Medical Drugs. 2/4. How antibiotics and antiviral drugs underpin efforts to find treatments for new diseases. [S,AD] [HD]

1/3. Documentary series delving into a rarely seen South American wilderness. Discover the secret lives of pumas and hummingbirds and soar with condors over glacial peaks. [S,AD] [HD]

8/15. Leaving from the seaport of Larne, Michael Portillo reaches Stranraer and the Mull of Galloway, where in a lighthouse built by Robert Stevenson, he discovers a magnificent machine. [S,AD] [HD]

4/5. The real side of boat life with Robbie Cumming. Robbie runs aground on the Rochdale Canal - will he make it to Manchester? [S] [HD]

4/4. The team are on an archaeological hunt of our more recent past as they follow the search for artefacts from World War II. [S,AD,SL]

Programmes start at 7.00pm. [HD]

Programmes start at 7.00pm. [HD]

...Worsley: Secret Knowledge. Lucy Worsley tells the story of Bolsover Castle in Derbyshire. [S] [HD]

5/5. Life on board a narrowboat with Robbie Cumming. There are engine issues and a leaky boat to fix before Robbie reaches Liverpool Docks. [S] [HD]

6/6. Victor and Margaret prepare for a holiday but have to cope with Mrs Warboys's bout of food poisoning, a visit from the electricity man and a snake. [S]

6/6. Ria has decided that her life is an untidy drawer full of people who bother her. In the effort to tidy it she finds it difficult to part with some people. [S]

Programme from 1979 which explores the failed plot to blow up Hitler in July 1944 and the film he subsequently ordered to be made of the trials and death throes of the conspirators. [S] [HD]

1/4. As the 2020 season ends, a cloud hangs over Oisin Murphy as he defends his jockeys' title. Contains some strong language. [S] [HD]

2/4. Kingsclere staff brave winter as Andrew sends runners to the Middle East. Contains some strong language. [S] [HD]