Clonmel man Luke Byrne and his wife Martina were on a break at the Celtic Ross Hotel in Killarney last week when they received the good news that Luke was to appear on Winning Streak, the National Lottery game show shown on RTE.
His twin brother Oliver called him and it took almost five minutes for him to convince Luke that he was telling the truth.
When he appeared on the show last Saturday Luke won €30,000, which includes a holiday to Nice.
Luke, who works as a postman, enjoys horse racing and show jumping. He also likes to potter in his garden.
He plans to go on an extended holiday after the show and to spend his winnings on some home improvements.
Luke and Martina celebrated their 30th wedding anniversary last August. His winning ticket was bought in An Post at the GPO in Dublin.