So, I've been investigating the advert all morning, and came across something interesting just now.
When you get the advert, right click on the image, and then click 'Open'and it will lead you to just a page with the image -http://www.sdcdn.com/cms/ads/300/campaign_8198/DoH_Teaser_MPU_v2SD.jpg  However it tells you the name of the image.Look at the name on here
Can you see, at the top of the page? DOH_Teaser
It seems to me that DOH is an accronym for something- Department of Health!

Updated by Maya- see M_Themis's more recent post for more on the DOH story.
Queenmaya99 / Maya