Season 1 PBS , 2002 - 2003 Season 2 PBS , 2003 - 2013 Season 3 PBS , 2004 - 2005 Season 4 PBS , 2005 - 2006 Season 5 PBS , 2006 - 2007 Season 6 PBS , 2007 - 2008 Watch now Season 7 PBS , 2008 - 2009 Watch now Season 8 PBS , 2009 - 2010 Watch now Season 9 PBS , 2010 - 2011 Watch now Season 10 PBS , 2011 - 2012 Watch now Season 11 PBS , 2012 - 2013 Season 12 PBS , 2013 - 2014 Watch now Season 13 PBS , 2014 - 2015 Watch now Season 14 PBS , 2015 - 2016 Watch now Season 15 PBS , 2016 - 2017 Watch now Season 16 PBS , 2017 - 2018 Watch now Season 17 PBS , 2018 - 2019 Watch now Season 18 PBS , 2019 - 2020 Watch now Season 19 PBS , 2020 - 2021 Watch now Season 20 PBS , 2021 - 2022 Watch now Season 21 PBS , 2022 - 2023 Watch now Season 21 of Ask This Old House brings back Kevin, Tommy, Richard, Jenn, and the crew, as they help homeowners tackle their most challenging home improvement projects. Season 22 PBS , 2023 - 2024 Watch now
, 2002 - 2003
