Nintendo has updated the Mii Contest Channel for European Wiis today - so that's what the blue flashy light is about.
Known as the Check Mii Out Channel in other parts of the world, it already lets you share your Miis and enter them into popularity contests, but now you can take advantage of exciting updates.
These include the ability to, er, find the Miis you've posted, see all Miis posted by a particular person, view 500 of the most popular Miis of the past two weeks rather than 50, and modify search strings for Miis without having to re-enter the entire number.
Does that make sense? I hope so. Also, you can apply parental controls, in case you don't want little Johnny downloading rude Miis and generally being groomed.
To take advantage of the Mii Contest Channel's new bits, you can download the update from the Wii Shop.