Bafta TV awards host Graham Norton braved the London heat and kicked off the red carpet in style, wearing a suit adorned with sparkly beads.
The British Academy TV Awards will see the likes of Idris Elba and Mark Rylance going head to head in the leading actor category.
The Big Bang Theory's Kunal Nayyar, Sir Lenny Henry, Countryfile's Matt Baker and Strictly Come Dancing's Craig Revel Horwood also endured the scorching temperatures in suits to sign autographs for fans at the ceremony on London's Southbank.
Bafta chairwoman Anne Morrison said she will be sending a pointed message to the Government about its upcoming White Paper on the future of the BBC at the event.
Speaking on the red carpet, she said: "What I'm going to be saying in my opening speech is just to celebrate how great British television is and say that the ecology we've evolved seems to be working for us. So whatever the future holds - and obviously there has to be change, it's a fast-changing world - just to make sure the quality and excellence we have on show tonight continues into the future."
The Government is expected to publish its White Paper on Thursday.
Actress Lesley Manville, who is nominated for best supporting actress for River, said she hoped "we don't get to a point in television where all women look the same".
She praised British TV police dramas for portraying realistic-looking women who "aren't all gorgeous and heavily made up all the time and had Botox that morning".
Lesley said she was "sad" to be the sole representative for the BBC drama, which also starred Stellan Skarsgard and Nicola Walker, but "really, really chuffed" with her nomination.
War And Peace star James Norton said he hoped Lesley would win the category, which he is presenting.
"I've got so much respect (for her) and she's done so much good work," he said.
Kunal revealed he is a huge fan of Luther.
The actor said he would be seeking out Idris for a chat later on in the night after spending his flight over from the US watching the show.
But he knocked back the chance of a cameo.
"I've got to grow a beard and some muscle before that show, I'll stick to The Big Bang Theory," he said.
Poldark's Aidan Turner spoke about his red carpet beard and hairstyle - a ponytail.
He said: "I thought I'd go incognito, but it didn't seem to work. The hair doesn't look good when it's down!"
The hit show is due to return to screens, but no broadcast date has been confirmed.
"I think the writing is good and the acting ain't so shabby," Aidan said of the popularity of the series.
The Great British Bake Off winner Nadiya Hussain promised the Queen would not be replacing Mary Berry in her affections after she baked a cake for the monarch's 90th birthday celebrations.
She said: "Mary Berry is still my Mary Berry, she's mine, but the opportunities I've had since winning Bake Off, for me that was making history, to make a cake for the Queen."
The mother of three now has her own cooking show, The Chronicles Of Nadiya, on the way and she said filming in Bangladesh had been "pure bliss".
"It was 42 degrees, it was hot, it was hard work, but it was 15 days of pure bliss. I liked nothing more than being in a situation where I got to learn and that's what I got to do, I got to learn, it was amazing."
She also said it was a "great thing" that Sadiq Khan had been voted in as London's first Muslim mayor.