The four-year contract is the richest in the history of the Scottish game and will take effect from the start of the 2010/11 season, once Setanta's current contract with the SPL expires.

SPL executive chairman Lex Gold believes the deal will have a hugely positive impact on member clubs.

Gold said: "Ten years ago we spoke about delivering a brighter future for Scottish football. Today, as we look ahead to our next 10 years we can do so with confidence.

"An investment on this scale, £125million, marks the biggest ever TV deal in Scottish football history. No commercial deal comes close to matching what has been achieved today by the SPL and Setanta Sports for our game.

"This is a step change for our clubs and will allow them to re-invest to make the Scottish game even stronger."