We've had Rock Hudson and Doris Day, Julia Roberts and Richard Gere. Now make way for TV's new golden couple - Sarah Parish and Robson Green.
OK, that's probably overstating it a bit, but it does seem the two stars are inseparable on screen right now.
Fresh from having starred with Robson in Trust, Sarah is reunited with him in ITV thriller, Unconditional Love. But while the 34-year-old actress is a big fan of Robson, she does think you can get too much of a good thing.
"Robson and I have by sheer chance been working quite a lot together recently - obviously there's an album coming out next year," jokes Sarah.
"We work well together. For a short guy, he's pretty good. I really enjoy working with him because, for the amount of work he's done, you'd think he'd be slightly jaded now, but he loves it. "
"He's like a puppy, so enthusiastic, a great force of energy, and completely unspoilt by the business, which I think is charming. But I doubt if we'll do anything else together, or we'll be turning into Ant and Dec."
But Sarah, the glamorous star of Cutting It and Hearts And Bones, becomes a lot more serious when she gets on to the subject of Unconditional Love, in which she plays a mother whose young son is kidnapped. It proved to be one of the most harrowing experiences of her career.
"It was a very emotional role and often difficult to play," she says.
Sarah and Robson play Lydia and Pete Gray, who are devastated when their son Max is abducted during his fourth birthday party.
"Someone asked me what research I did for the part, but there's no research you can do - you've just got to go for it and hope you don't insult people to whom it's happened," says Sarah. "You've got to go with your gut. "
"It was a very intense shoot, about four weeks, which is an incredibly short amount of time to make a two- hour film. "
"There was absolutely no going out and socialising, which I'm used to. It was straight back to the hotel and straight to bed, but then again, nobody really wanted to go out and socialise. It was an upsetting thing to do, especially over the summer we had last year - the subject matter was very topical."
Sarah is not a mother and concedes she can't imagine what it would be like to lose a child.
"The nearest I could do was ask my sister who has kids," she says.
"And she can give no explanation, it's just a horrific thing. And that's hard to play."
Sarah is very close to all of her four nieces.
"They're all absolutely brilliant, and they're at that age where everything has to be pink or purple," she says.
One scene in Unconditional Love required Sarah to fire a gun - something she found both frightening and exhilarating.
"I'd never held a gun before - apart from in a fairground," she says. "But this was a real gun, and just the sheer weight of it was terrifying. I did pull the trigger, but there were no bullets in it."
Part of the drama was filmed in an atmospheric hotel in north London, which added to the chills and spills.
"It was in this amazing building near St Pancras station which used to be an old hotel and it was fascinating to look at," says Sarah.
"Some of it looked almost medieval, some bits looked Gothic, and some bits of it looked like The Shining, with corridors going on forever. "
"It was a fantastic place to film because usually if you're doing a frightening scene, you can't help but notice there are 30 people behind you with a bunch of lights and a camera. "
"Doing it in that building, you could forget they were there. Sometimes, I was really scared."
Sarah's career is going from strength to strength. A former star of the Boddington's beer commercials, her TV credits include Peak Practice, The Vice, thriller Sirens, and BBC1's hit hairdressing wars drama Cutting It - she is currently filming the second series.
One of Sarah's Cutting It co-stars is her close friend Amanda Holden - and the two girls recently found themselves being followed by photographers when they went abroad for a holiday soon after Amanda's split from her husband Les Dennis.
"I find that whole area of Press intrusion slightly odd," says Sarah. "When I was away with Amanda, I got a newspaper and there was this huge story on the front page about Amanda and Les splitting up, and then on page four there was a tiny article about how a human baby had been cloned. "
"How strange that people would rather see a front page about two celebrities whose marriage has ended than a story about a baby being cloned. "
"On holiday, we knew the paparazzi would be there, but it still gets exhausting. If you want to go for a meal, you have to go down in the laundry lift and walk through the kitchens, which was very glamorous and slightly Goodfellas, but it is still knackering. You think: `Go home to your families, it's New Year.' "
"It's been pretty rough on the set of Cutting It, too, as they hang around and want to get photos of Amanda, and it's really destructive to filming. So I do get defensive about Amanda because she is a good friend and she gets a terrible press. But that's her life, it's not mine. I try and keep out of the limelight - it's not my scene."
Sarah did experience some privacy intrusion when she became more than just friends with her Hearts And Bones co- star, Hugo Speer, but the couple split up last year and Sarah is single again.
"There isn't anyone in my life," she says, with a smile. "It's probably a mixture of the pressures of work, the lack of inclination, and the fact that the right guy has not turned up. "
"As for having children, no, Unconditional Love didn't make me feel particularly broody, but I would love to have kids at some point in my life."
Meanwhile, the work goes on for Sarah. Filming the new Cutting It series will take her up until the end of March, and also in the can is another ITV drama Impact, a two- part thriller co-starring Iain Glen and Hugh Bonneville.
"I'm an all-action heroine in that," says Sarah. "It's about three air- crash investigators looking into a terrorist attack on a plane. Obviously the subject matter is slightly sensitive at the moment, so I've no idea when it will be shown, but it was a really great job. "
"I never normally get roles like her - usually I play characters who are emotionally tough. It was great having the chance to jump out of helicopters and drive Land Rovers without worrying how glamorous I looked."
Sarah also thoroughly appreciated working alongside Iain Glen, who plays her romantic interest in the drama.
"Iain was fantastic to work with - another great screen partnership. He's completely different to Robson Green. Robson is like a big bouncy puppy, whereas Iain is just so cool - he's got that Scottish thing about him, very sexy."
With barely a moment to take breath from all these projects, Sarah is one of the busiest actresses on the small screen. And although it took her some time to get to this point in her career, she would never have wished it any other way.
"I've been very lucky," she says. "It's been a slow burn for me, as I've been acting for 13 years now, but you appreciate it all so much more."