Ricky returns

Orla Timmins

DEREK: Channel 4, 10pm The Office and Extras star Ricky Gervais, below, writes, directs and stars in this one-off comedy drama about a group of people on society's margins.

Derek works in a retirement home with his landlord Dougie. He adores animals, Rolf Harris and TV, but his main hobby is autograph-hunting. Derek also features Karl Pilkington in his debut acting role.

Channel 4, 10pm The Office and Extras star Ricky Gervais, below, writes, directs and stars in this one-off comedy drama about a group of people on society's margins. Derek works in a retirement home with his landlord Dougie. He adores animals, Rolf Harris and TV, but his main hobby is autograph-hunting. Derek also features Karl Pilkington in his debut acting role.

ANIMAL MAGIC

The Zoo

RTE1, 7pm More animal antics as Ciaran and the keepers try their best to make a new male snow leopard feel welcome, but first the zoo's female specimen must give her approval.

And there is a trip to the countryside to explore the smooth newt's native habitat.

WILDLIFE AT RISK

Ivory Wars: Out of Africa

BBC1, 9pm As demand for ivory rises in the Far East, this Panorama special asks what the future holds for the African elephant. Rageh Omaar goes on the trail of the poachers, smugglers and organised-crime syndicates, and reveals that unless China curbs its huge appetite for ivory, the future of the animal could be in jeopardy.

DEADLY GAME

The Mentalist

RTE1, 10.15pm Tonight, Patrick is called to a nightclub car park where an undercover policewoman has been shot, and discovers she was trying to obtain incriminating evidence against a drug kingpin -- whose henchmen later kidnap him.

His only chance of escape lies in playing a psychological game with the dead woman's partner.