Tipping Point host Ben Shephard couldn't believe it, when one contestant made an error on the ITV series on Tuesday afternoon.
TV extra Denise soon confessed she had appeared in some UK soaps, after getting a question about Hollyoaks wrong.
Denise was asked: "The Dog in the Pond is a fictional pub in which British soap opera?"
She didn't know the answer though and went with Emmerdale, only to be told by Ben that it was in fact Channel 4's Hollyoaks.
Later in the show, Ben decided to ask about Denise's soap stints, and he was surprised by her confession.
Asking what she did for work, knowing she did filming in TV, Ben said: "You’re a TV extra Denise, is there anything I might have seen you in?"
She then revealed she had been in Coronation Street in the past, leaving Ben impressed.
He said: "Oh really? Nice... you've never done Hollyoaks though? You didn't know the pub in Hollyoaks."
It's then that Denise was forced to confess that she has been on the Hollyoaks set, and has filmed as an extra for the show.
She confessed: "I've done it once, I have," before hysterically laughing as a stunned Ben shouted: 'No you haven't!"
But Denise soon explained that it was only once and she did not do any filming in the village pub, hence why she didn't know the name of it.
She also didn't watch the soap, despite having starred in it, so she really had no chance with guessing the answer correctly.
Ben asked: "Don’t tell me you were in the pub as well..."
Denise replied: "No I wasn't, no. We didn't do a pub scene so, I don’t really watch Hollyoaks but I was asked to go and do Hollyoaks, and I thought I don't believe this."
Ben quipped: "That’s showbiz, that’s how it works!"
Tipping Point airs weeknights at 4pm on ITV.