Inventing the Impossible: The Big Life Fix, BBC2, 8pm
AS the second series comes to a close, designers Zoe Laughlin and Ryan White investigate whether there is anything they can do to help 11-year-old Malachi. He has Tourette’s syndrome and ADHD, so his tics and behavioural issues can make life a misery. Plus, the team hopes to assist a quadriplegic man who wants to use his mobile and credit card on the high street without having to ask for help.

Searching for Mum: Sri Lanka, BBC2, 9pm
TWO women – both adopted as babies – return to Sri Lanka to try to find their birth families. For the first nine years of her life, Rebecca, 38, thought her adoptive family was her birth family. After she found adoption papers by accident, she has been trying to find the truth about where she came from. Cameras also follow Ria, 27, who was adopted by a couple living in northern Scotland.

Celebrity Big Brother: Live Launch, Channel 5, 9pm
BY Ulrika Jonsson’s victory in 2009, many CBB viewers had enough. However, when chirpy Emma Willis took over, the show received a boost. Now the whole thing kicks off again, and if this launch show leaves you hungry for answers – like who are these alleged celebs? – then all will be revealed in the spin-off show straight after.

Meet the Drug Lords: Inside the Real Narcos, Channel 4, 9pm
JASON Fox travels to Peru to conclude his investigation into the South American drug cartels. He heads for Cocaine Valley, where he meets one of the area’s most renowned cocaine chefs, joins drug carriers on a dangerous trek and accompanies a police unit on a raid to destroy a jungle lab.

The Detectives: The Farmhouse Robbery, ITV, 9pm
DOCUMENTARY focusing on Lancashire Police’s major investigation team. Detectives look into a robbery at a farmhouse where the owner was tied up and items were stolen, including seven hunting rifles and the victim’s car.