I don't actually remember ever owning a folder called 'Who Shit' and if I did own one it would likely contain avi's of the Davidson years, not a priceless piece or art like this.
Where did it come from, no idea. If anyone can shed a light on the origins of this I'd love to know, give the maker a link, and hail them as a comedy god.
I found several other bits of tat in there too, which I'll post at some point when I stop laughing and can take my eyes off this anim.
It's kinda mesmeric, like a lava lamp...
NB: A quick update on this. While we've not tracked down the original maker, 'The Angel' (oi, oi , Lady Angelica) sent us this link to Doctor Who at the Roxbury on Youtube, which certainly adds something ;-)