Odd vodeo problem with bbpress

Hi, I have a problem that has me beat and confused and I have already tried the usualy fault finding solutions i.e disabling plugins.

Firstly take a look here: http://ohbother.forumite.co.uk/forums/forum/tech/

As you will notice, in the sidebar on the right there are videos and there also on every other forum page accept this one were there not displaying: http://ohbother.forumite.co.uk/forums/

I dont understand it, the pages are exactly the same! Can you please take a look to see were I am going wrong.