Stath Lets Flats (Channel 4, 10pm)

You may not know Jamie Demetriou's name, but if you're a comedy fan, you probably know his face. Rev, Fleabag, Uncle, Lovesick, Friday Night Dinner - if you've watched an acclaimed sitcom in the past five years, there's a good chance Jamie will have been in at least one episode of it.

So, he should definitely know the ropes as he launches his own series, Stath Lets Flats. As the title suggests, it's about a lettings agent, but there's a little more to the show than that.

Jamie explains: "The show is based in one of those lettings agencies that are ten-a-penny that you can pass a million times without knowing what sort of a business it is. It's got a stupid name and it's a stupid business as a result.

"The show is about London Greek-ness and the way that looks and feels. And it's about family, nepotism and the results of love."

He adds: "It's primarily about a character named Stath who is, for want of a better word, an idiot. He's someone who wants to be clever without learning. Stath is someone who assumed he must be amazing because it would be incredibly inconvenient if he wasn't."

But even though he's working at the family business, Michael & Eagle, Stath is far from being a golden boy. He risks being outshone by both ruthlessly ambitious Carole (Katy Wix) and Al (Alastair Roberts), who may be a nervous negotiator but has caught the eye of Stath's sister Sophie (Natasia Demetriou, Jamie's real-life sibling).

But despite Stath's failings, Jamie admits he's got more in common with the character than he'd like to admit. "If I was to remove all airs and graces and if I was to never monitor myself and I'd never had any sort of training in this world, I would probably be Stath. He's just a man who's never listened to anything anyone's ever said. He's basically me if I had never listened to anyone and if I liked Euro R&B a bit more."

But he hasn't just drawn on himself for inspiration - Jamie also looked to some real-life lettings agents. He says: "There are some people who are very good at it and they can let a flat, but of the majority of lettings agents I've met, the strongest job they've done is turning me off the place...

"There are some verbatim things from viewings I've had in the show. For example, a guy [when] we went in and the lights weren't working said, 'No, this is actually a treat so when you move in you will be the first person to see the flat with the lights on.'"

We'll get to see Stath's technique for ourselves in the first episode, as he tries to impress his dad Vasos (Christos Stergioglou) following an incident where he lost his patience and pushed a customer. But the other agents are quicker off the mark, prompting Stath to resort to underhand tactics.

The Highland Midwife (C5, 8pm)

New series. Morven treats a woman who wants a home birth, but when she is still in labour after more than 30 hours, a difficult decision must be made. Hazel helps a woman preparing for her third C-section, who fears she will not survive the procedure following complications with her previous births - and with her military husband away from home, it's up to the midwife to keep her calm. Finally, Ruth finds herself facing the possibility of delivering a baby in the back on an ambulance while they are still an hour away from the hospital.

The World's Most Extraordinary Homes (BBC2, 8pm)

Piers Taylor and Caroline Quentin head to Israel, where they discover four extraordinary homes, designed to combat the heat and inspired by rich cultural and historical traditions. Among the properties are Barud House in Jerusalem, made from 50,000 white stone tiles, arranged into a symmetrical pattern that casts shadows across the house all day. The final stop is the village of Musmus and the House of Three Gardens, where Tel Aviv architect Ron Fleisher has designed a house that combines traditional Islamic architecture with modernism. Last in the series.

The People Vs The NHS: Who Gets the Drugs? (BBC2, 9pm)

In 2013, the Oscar-winning movie Dallas Buyers Club brought attention to the story of Ron Woodruff, who in the 1980s smuggled unapproved drugs into Texas to treat his fellow Aids patients. Now this programme shines a light on the true tale of Greg Owen, who, despite being homeless, helped to stop thousands of people from becoming HIV positive when he set up a website that allowed them to buy a generic version of the drug PrEP, which prevents the virus developing in the body. But while it may sound like it has the makings of a feel-good movie, the documentary also explores the fight to overturn an NHS decision not to fund the drug, and asks what the case says about how the cash-strapped service decides what it will and will not pay for.