BBC Sport presenter Jason Mohammad made an apology to viewers on Saturday's Final Score after guest Shay Given used the word "Holocaust" on air.
Given, a regular football commentator, made the comments while discussing Wilfried Nancy's brief tenure at Celtic.
Nancy was sacked as manager of the Scottish club after just 33 days in charge.
Given said: "Nancy was terrible from start to finish, I don't think they should have ended Martin's [O'Neill's] short tenure at the start.
"It was the week leading up to the Hearts game, top of the league clash, then Roma in the Europa League and St Mirren in the League Cup final, I thought Martin should have been given that week at least.
"Nancy took over that week and had an absolute Holocaust in that week and it was just a nightmare from then on. The defeats and Rangers last weekend was the final straw, final nail in the coffin."
Given's comments sparked an online backlash, prompting presenter Mohammad to issue an apology before the show ended.
Mohammad said: "A little earlier you may have heard some inappropriate language so we would like to apologise for any offence caused."
Given later took to social media and said he was "mortified" at what happened, admitting he had not fully understood the meaning of the word. He donated his appearance fee to the Holocaust Educational Trust.
Given wrote: "On live television this afternoon, I used a word that I didn't fully understand meaning of, and certainly won't ever use again.
"We all have areas of ignorance in our knowledge, and I hope to use this as an opportunity to become better educated going forward.
"I am genuinely mortified and apologise unreservedly to everyone offended, and will be donating my fee from today's show to the Holocaust Educational Trust."
