An 'It's a Sin'-inspired T-shirt has raised £250,000 for a HIV and sexual health charity, after the show was watched 19 million times.

It's a Sin

It's a Sin

The Channel 4 drama - which tells the story about a group of friends living amid the HIV/Aids crisis during the 1980s - has amassed 18.9 million views on the on-demand service All 4, and sales of Philip Normal’s 'La' T-shirts, inspired by the word the pals say to each other before they leave their Pink Palace pad for the day, has generated more than a quarter of a million for the Terrence Higgins Trust.

A day after 'It's a Sin' launched, the charity's helpline - which provides support and advice around HIV and sexual health - experienced a 30 per cent increase in calls.

Ian Green, Chief Executive at Terrence Higgins Trust, said: "'It’s A Sin' has had an amazing impact and I’m thrilled the series has been so successful.

"The series examines a time in our history we must never forget - when people were dying of a mystery illness and we didn’t know why.

"But it’s also important that everyone knows how much HIV has changed since then thanks to massive improvements in preventing, testing for and treating HIV.

"You can now live a long, healthy life with HIV and effective treatment means you won’t pass on the virus to anyone else.

"We’ve seen the 'It’s A Sin' effect on National HIV Testing Week with tests being ordered at a faster rate than ever before off the back of the series.

"That’s a brilliant legacy for the series."

Data provided from the charity showed that across National HIV Testing Week - February 1st to 7th - more than 17,000 HIV tests were ordered, more than double the 8,200 ordered during last year's HIV Testing Week.

Ian Katz, Chief Content Officer of Channel 4 said: "It’s thrilling that 'It’s a Sin' has touched so many people in such a powerful way.

"It’s a wonderful example of how great television can emotionally engage millions of people and leave a real legacy of positive change - just what Channel 4 is there for."

'It's a Sin' is the brainchild of Russell T Davies, and stars Olly Alexander, Keeley Hawes, Stephen Fry, and Neil Patrick Harris.