Transmissions
| Series | Start date | End date | Episodes | Host | Eggheads | Landmark | |
|---|---|---|---|---|---|---|---|
| Series | Cumulative | ||||||
| 1 | 10 November 2003 | 19 December 2003 | 30 | 30 | Dermot | Chris, Daphne, CJ, Kevin and Judith | |
| 2 | 6 September 2004 | 16 November 2004 | 30 | 60 | Dermot | Chris, Daphne, CJ, Kevin and Judith | |
| 3 | 23 May 2005 | 7 November 2005 | 30 | 90 | Dermot | Chris, Daphne, CJ, Kevin and Judith | |
| 4 | 8 November 2005 | 12 December 2005 | 25 | 115 | Dermot | Chris, Daphne, CJ, Kevin and Judith | 100th episode on 22 November 2005 |
| 5 | 10 April 2006 | 6 June 2006 | 40 | 155 | Dermot | Chris, Daphne, CJ, Kevin and Judith | |
| 6 | 25 September 2006 | 5 March 2007 | 25 | 180 | Dermot | Chris, Daphne, CJ, Kevin and Judith | |
| 7 | 6 March 2007 | 10 September 2007 | 80 | 260 | Dermot | Chris, Daphne, CJ, Kevin and Judith | 250th episode on 27 August 2007 |
| 8 | 11 September 2007 | 28 February 2008 | 80 | 340 | Dermot | Chris, Daphne, CJ, Kevin and Judith | |
| 9 | 29 February 2008 | 23 March 2009 | 160 | 500 | Dermot (Episodes 1–80) Jeremy (Episodes 81–160) |
Chris, Daphne, CJ, Kevin, Judith and Barry | Barry's debut on 2 December 2008 500th episode on 23 March 2009 |
| 10 | 24 March 2009 | 26 February 2010 | 155 | 655 | Dermot (Episodes 1–75) Jeremy (Episodes 76–155) |
Chris, Daphne, CJ, Kevin, Judith and Barry | 600th episode on 11 November 2009 |
| 11 | 1 March 2010 | 6 April 2011 | 160 | 815 | Dermot (Episodes 1–80) Jeremy (Episodes 81–160) |
Chris, Daphne, CJ, Kevin, Judith, Barry and Pat | Pat's debut on 1 March 2010 750th episode on 26 October 2010 |
| 12 | 7 April 2011 | 13 April 2012 | 160 | 975 | Dermot (Episodes 1–80) Jeremy (Episodes 81–160) |
Chris, Daphne, CJ, Kevin, Judith, Barry and Pat | |
| 13 | 16 April 2012 | TBC in 2013 | 140 | 1115 | Dermot (Episodes 1–60) Jeremy (Episodes 61–140) |
Chris, Daphne, CJ, Kevin, Judith, Barry, Pat and Dave | 1,000th episode on 18 May 2012 CJ's final episode on 31 August 2012 Dave's debut on 27 September 2012 |
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