Show all content related to child taxonomy terms in parent I don't think I could explain it any better here then I have in the title.

Basically if I have a taxonomy term call Parent and it has sub terms called Child 1 and Child 2. I'd like to be able to see any content related to Parent's sub terms (Child 1 &amp; Child 2) appear on the Parent taxonomy page.

Thanks in advanced!
Looking around I have found the solution that helps me. It's a module called Hierarchical Select.