The One Show's Alex Jones and Jermaine Jenas had to ask BBC producers to step in after they couldn't settle a debate.
During Wednesday night's instalment of the show, Sarah Pascoe was on the sofa with the hosts to discuss The Great British Sewing Bee.
Sarah, who presents The Great British Sewing Bee, gave viewers a sneaky preview of the new episode.
Speaking to Alex and Jermaine, she said: "90s week is next week. That was my favourite, I was really into it. I said 'Wasssuuuppp' a lot!"
Jermaine then pointed out that the iconic phrase was actually more popular in the noughties.
Sarah joked: "Okay, I think we are going to need an edit!"
Jermaine then went on to urge viewers to get in touch with information on the phrase.
After the interview came to a close, Alex decided to bring up the discussion again and said people at home claimed it was from the 90s.
Jermaine piped up: "No, no, no, it was the noughties!"
The pair bickered about it for a while before Alex decided to look directly into the camera to ask producers to help them out.
Sarah tried to keep a neutral face during the silence before a producer found the information.
After being told in her ear piece, Alex smiled: "20th December 99, we're right."
The iconic phrase was a commercial campaign for Budweiser beer between 1999 and 2002.
The first spot aired during Monday Night Football on December 20, 1999, and quickly became a worldwide catchphrase.
The One Show airs daily at 7 pm on BBC One.
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