Ambulance is on BBC One at 9pm.

Friday night proves to be very busy for the West Midlands Ambulance Service as they attend a series of serious incidents, including a violent attack.

Esther Rantzen’s House Trap is on Channel Five at 7pm.

A brand new consumer series in which the presenter sets out to catch unscrupulous traders who prey on Britain’s pensioners, by rigging houses with secret cameras.

Salisbury Nerve Agent Attack, The Inside Story is on BBC One at 8pm.

One-off documentary focusing on the nerve-agent poisoning of former Russian spy Sergei Skripal and his daughter, Yulia, in Salisbury in March of this year.

The First is on Channel Four at 9pm.

Laz works alongside the engineers to find a solution to the Mars vehicle malfunction, while Tom and Ellen grow ever closer.

Tomorrow’s World, For One Night Only is on BBC Four at 9pm.

One-off edition of the technology series, revealing what happened to some the innovations featured on the show many years ago.

The Big Bang Theory is on E4 at 8pm.

Sheldon seeks revenge on Howard, after his colleague dresses up as him for Halloween.