Some of you ma be aware we have been collecting pictures of our viewers.
They can be emailed to firstname.lastname@example.org
I also promised some prizes.
A random draw selected three viewers and their prizes will be posted this week.
They'll receive the full set of "periodicvideos collector cards"... well, okay, promotional URL cards.
But these cards have been signed by the team.
The winners already know who they are and the cards are on their way!
Click here for viewer pictures on Flickr. And send your own if you'd like to be included (though you are too late for the prizes!)