ANT and Dec's Limitless Win viewers slammed a 'wrong' answer that ultimately cost a couple £250,000.
The hit ITV Saturday night show sees pairs of contestants working together to win large cash prizes.
Contestants Richard and Lorna missed out on banking £250,000 - following a question about the length of a vacuum cleaner cable.
Ant and Dec asked: “In metres, how long is the electrical cable on a standard Henry vacuum cleaner?”
The two pondered over the question and decided it was somewhere between eight and 10 metres long.
After opting for eight metres, they soon learned that the correct answer was 10.
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Fans were left outraged, however, as some shared screenshots appearing to show Henry hoover-compatible chords for sale at a length of 8.4 metres.
One fumed: “So Henry Hoover cable length is 8.4 metres so why in the show was it 10?”
Another wrote: "Interesting. Google has the henry cable at 8.4m. Interesting for £250k."
A third added: "Pay up @ITV #limitlesswin Clearly they were right!”
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The brand's official site, however, lists the length as 10m, ultimately meaning ITV's answer was correct.
An ITV spokesperson told Metro: “In the episode of Ant & Dec’s Limitless Win first shown on ITV1 on Saturday 11 January 2025, the following question was asked: ‘In metres, how long is the electrical cable on a standard Henry vacuum cleaner?’
"The correct answer was given as 10 metres. The source of this answer, as referenced on the show, is the official Henry website.”
In the end, Richard and Lorna managed to walk away with a still-impressive prize of £30,000.
Elsewhere, Ant and Dec were left gobsmacked when a duo from Bristol won the £250,000 prize.
Filmmaker Dan and textile artist Sarah banked a quarter of a million pounds after using a lifeline.
The 'Take Two' option allowed the contestants to devise their own answer for a tough question and for the hosts to suggest another.
They were asked: "To the nearest centimetre, what is the length of a Johnson’s Baby Cotton Bud?"
The guess closest to the correct number without going over would count as the final answer.
Dan and Sarah decided to lock in their answer of five as Ant and Dec had just thirty seconds to produce theirs.
Ant and Dec's incredible career
ANT McPartlin and Declan Donnelly met on the set of Byker Grove in 1990.
The two went on to have chart success under their characters' names - including their 1994 No1 smash hit Let's Get Ready To Rhumble.
They haven't looked back since then, going on to present some of the most popular shows on TV.
Here's a rundown of some of their most popular shows - plus one "dud".
- The Ant & Dec Show - this late afternoon kids' entertainment series ran from 1995-1996 for 17 episodes
- Ant & Dec Unzipped - the twosome jumped from ITV to Channel 4 for this children's sketch show in 1997
- SM:TV Live - the duo teamed up with Cat Deeley in 1998 for Saturday morning mayhem including the classic Wonkey Donkey game
- Friends Like These - the Geordie pair hopped channels again, landing on BBC One to present this game show from 1999 until 2001
- Pop Idol - before The X Factor there was Pop Idol, which ran for two seasons in 2001 and 2002 and saw Michelle McManus and Will Young crowned the winners
- I'm A Celebrity Get Me Out Of Here - the reality TV show began in 2002, with Dec presenting all 23 seasons, even one without sidekick Ant as Holly Willoughby stepped up
- Ant & Dec's Saturday Night Takeaway - this show also began in 2002, but the lads said the 2024 offering would be their last
- PokerFace - Ant and Dec created this game show which aired from 2006-2007. with a top prize of £1million.
- Britain's Got Talent - the TV series began in 2007 with the pair's backstage antics loved by fans. They also took part in silly competitions on Stephen Mulhern's ITV spin-off Britain's Got More Talent
- Red Or Black - the show only aired for two seasons in 2011 and 2012. It was one of the pair's rare "flops" with Dec admitting "we got it wrong"
- Ant & Dec's Limitless Win - the pair had another success on their hands when this show hit screens in 2022
The I'm A Celebrity pair deliberated before they reached a decision of eight.
This turned out to be an exact answer, which banked the lucky couple £250,000.
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After another tough question about the number of avenues that surround the Arc De Triomphe in Paris, the duo decided to cash out.
Limitless Win airs on ITV1 and ITVX.