Martin Lewis was forced to shout over Good Morning Britain guests Kevin Maguire and Andrew Pierce as he hosted the ITV breakfast programme alongside Susanna Reid.
The Money Saving Expert helmed the panel amid a debate over the announcement of fresh rail strike dates over Christmas.
The RMT union has also announced further strike action from 6pm on Christmas Eve to 6am on December 27.
Yet Susanna noted union boss Mick Lynch had previously appeared on Good Morning Britain last month and said they had no plans to strike over the festive period, prompting fierce debate on the programme on Wednesday morning.
The Daily Mirror Editor Kevin Meguire explained Lynch had likely changed tack because he had been hoping for better progress in the negotiation talks with Network Rail and the government.
Andrew Pierce then hit back saying: “How can anybody negotiate with a man who makes a pledge on this programme and then 10 days later breaks it completely,” to which Maguire replied: “Because there was no progress.”
Martin Lewis then cut in to say: “To be fair, the whole point of renegotiation is you have a position and you negotiate it.
“I’m not sure there’s any standardised pledging – not taking a side either way – but the idea that it is negotiation,” however he was then cut off as Susanna said: “But to the public it sounded like, ‘Don’t worry we won’t strike’.”
Maguire again insisted: “It’s because he was looking for progress and he said he hasn’t got any progress,” however Pierce then interrupted teasing: “Ebenezer Scrooge and Grinch.”
Maguire replied: “It’s not going to get you anywhere talking like that,” however Martin then tried to move on to the next part of the programme as he was forced to repeatedly shout while turned to the camera: “Still to come! Still to come!”
Mr Lynch said of the prospect of more intense strike action: “We remain available for talks in order to resolve these issues but we will not bow to pressure from the employers and the government to the detriment of our members.”
Tim Shoveller, Network Rail's chief negotiator, accused the RMT of ‘playing fast and loose with people's Christmas plans’.
He said: “This response from the RMT to a significantly enhanced offer exposes their true priority – using the British public and Network Rail workers as pawns in a fight with the government.
“What use is a referendum that means the strike disruption is inevitable?”
