He first appeared on 4 February 2006, only a few days after his games were recorded. He went on to become an octochamp including a score of 113 against Alan Patient, which gave him a total point total over 800 for his eight games. In the quarter-final he beat Keith Maynard in spectacular fashion, leading 50 – 0 after 5 rounds, the biggest ever recorded lead after the first numbers game. This set up a clash with #1 seed Conor Travers. Both players scored the maximum in every letters round, the only time this has ever happened, but both players struggled with two difficult numbers games, which allowed Travers to take a 14-point lead into the conundrum. Travers solved the conundrum and won the game 124 – 100. 100 is the second highest losing score during the finals stages of a series — Nicole Hutchings got 105 against Stewart Holden in Series 51. His score is however the highest losing score in a semi-final.
Howe was invited back to the Championship of Champions XII where he beat John Mayhew in the first round. At the time, Mayhew had never been beaten and Howe remains the only player ever to beat him. In the semi-final he narrowly beat Jack Welsby thanks to words like BURGONET but Howe's winning streak ended against the unbeaten Mark Tournoff. Howe held the Series 52 champion to a crucial conundrum which Tournoff solved to maintain his unbeaten run. Howe only ever lost to two people, both of whom were series champions - Conor Travers and Mark Tournoff.
Before appearing on the show, he had attended the first Countdown tournament, COLIN 2005 and CoBris 2005, then subsequently COLIN 2006, CoBris 2006, COLIN 2007, COLIN 2009, Co:Lon 2010 and Co:Lon 2011. He also achieved the 3rd place result in CoNot 2008 and 2nd place in CoNot 2009 and COLIN 2010.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|4027||4/02/2006||P||Keith Reading||83 – 102||Paul Howe||Richard Digance||Susie Dent||123|
|4028||6/02/2006||P||Paul Howe||109 – 72||Judith Shade||Richard Digance||Susie Dent||133|
|4029||7/02/2006||P||Paul Howe||95 – 77||Darren Wilks||Richard Digance||Susie Dent||127|
|4030||8/02/2006||P||Paul Howe||93 – 56||Alison Campbell||Richard Digance||Susie Dent||131|
|4031||9/02/2006||P||Paul Howe||105 – 49||Terence Reilly||Richard Digance||Susie Dent||118|
|4032||10/02/2006||P||Paul Howe||107 – 61||Michael Jones||Carol Thatcher||Susie Dent||122|
|4033||11/02/2006||P||Paul Howe||113 – 42||Alan Patient||Carol Thatcher||Susie Dent||122|
|4034||13/02/2006||P||Paul Howe||91 – 47||Clare Hughes||Carol Thatcher||Susie Dent||121|
|4109||23/05/2006||QF||Keith Maynard||49 – 118||Paul Howe||Richard Digance||Susie Dent||134|
|4110||24/05/2006||SF||Conor Travers||124 – 100||Paul Howe||Richard Digance||Susie Dent||130|
|4117||2/06/2006||CP||John Mayhew||87 – 117||Paul Howe||Ron Atkinson||Susie Dent||132|
|4124||13/06/2006||CQF||Jack Welsby||72 – 83||Paul Howe||Kim Woodburn||Susie Dent||118|
|4125||14/06/2006||CSF||Paul Howe||88 – 99||Mark Tournoff||Kim Woodburn||Susie Dent||126|