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In 2000, Big Tom underwent a nodule operation on his throat. In September 2004, Big Tom was reported to have been in a list of Irish tax evaders.
8 July 2005 – A plaque was erected by the local community in Big Tom's home village.
November 2006 – Big Tom suffered a sudden heart attack at the age of 70, which had put doubt into whether he would ever tour again with his band.
1 February 2008 – Big Tom began a 12-date tour of Ireland after doctors gave him the all clear.
24 March 2008 – Big Tom performed at Castlebar's TF Ballroom's final farewell night (in its current guise) but he was reported to have taken ill on stage during the performance.
25 May 2008 – Big Tom performed for the closure night of the Galtymore dance hall in Cricklewood, London.
27 July 2008 – Big Tom was headline act at London's Irish Festival.
23 November 2008 – Big Tom headlined the Claremorris dance festival weekend.
July 2009 – K-MAC Records announced more dates in Ireland for Big Tom and the Mainliners which commenced August 2009.
14 August to 13 September 2009 – Successful tour of Ireland with large attendances[clarification needed] to venues. The highlight was the Glencarn Hotel in Tom's home town Castleblayney where the concert was packed to capacity. The tour ended in Ennis with fans travelling many miles to see Tom and the band. Two days after the end of the tour the band's trombone player and vocalist Cyril McKevitt died of a heart attack.
8 November 2009– Big Tom will be back in Claremorris to headline the Michael Cummins Dance weekend.
2010 – Big Tom announced an extensive series of tour dates
2011–present – Tom and the band continue to perform with sporadic appearances.
2016 – Tom and the original mainliners will tour to mark 50 years since the release of their most enduring hit – "Gentle Mother"
June 2016 – Big Tom became the first artist to be inducted into the Irish Country Music Hall of Fame.
May–September 2016 – Big Tom and the mainliners continued their summer tour to celebrate 50 years of Gentle Mother
The CD releases typically contain tracks which were previously issued on vinyl, however those marked * consist all tracks newly recorded and those marked ** consist of some tracks newly recorded. The 20 Golden Greats CD may be discontinued as all tracks have been reissued on latter CDs.
The Greatest Hits CD includes two tracks taken from the Live at the Glencarn Hotel video. The Live at The Galtymore CD is solely the soundtrack from the video of same name recorded in 1991.
It is intended by Big Tom's record company to reissue all vinyl tracks on to CD releases.