BBC Four HD SkyTV

Programmes start at 7.00pm. [HD]

5/6. Fred Dibnah visits the North East, which is rich in railway history, and gets to ride on the footplate and stoke the boiler of a Black Five at Llangollen Railway. [S]

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]

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]

Celebrities talk about which of Cezanne's works they find most inspiring. [S]

2/2. As construction continues, specialists work to uncover unexploded World War II bombs. [S,AD] [HD]

9/11. Warren decides to stop living a lie, Milly and O'Donnell become closer. Contains some strong language and some scenes of a sexual nature. [S]

10/11. O'Donnell could prove to be Milly's knight in shining armour. Contains some strong language. [S]

3/3. Gabriel Weston investigates the forensic advances that have elevated the murder weapon from its role of mere evidence to that of key witness. [S,AD] [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]

5/6. Fred Dibnah visits the North East, which is rich in railway history, and gets to ride on the footplate and stoke the boiler of a Black Five at Llangollen Railway. [S]

2/2. As construction continues, specialists work to uncover unexploded World War II bombs. [S,AD,SL] [HD]

3/3. Gabriel Weston investigates the forensic advances that have elevated the murder weapon from its role of mere evidence to that of key witness. [S,AD,SL] [HD]

Programmes start at 7.00pm. [HD]

Programmes start at 7.00pm. [HD]

6/6. Fred Dibnah examines the skill of the shipbuilders and machine engineers who turned Britain into a great manufacturing nation. [S]

Archaeologist Ben Robinson explores London, the ultimate 'city of villages', including a new breed of urban villages like Crouch End and Walthamstow. [S] [HD]

...That Built Gothic Britain. How the great icons of British Gothic architecture were all created by one family. [S] [HD]

Two unlikely partners in a bounty-hunting scam join forces in a new venture. Contains some violence and some upsetting scenes. [1968] [S] [HD]

A profile of actor and director Clint Eastwood in which he talks to Iain Johnstone. Deals with adult themes. [S]