Talk:Ultimate ChamAlien (Curtis 10)/@comment-28716546-20160727134658/@comment-24922135-20160727140728

I seem to remember Alan being a fan of Dr who, so I think it might be.

For those that don't know: the perception filter is what prevents the TARDIS from being noticed by people that don't know what it is unless they have reason to notice it. It helps keep it hidden despite being so out of place I modern London.