I was interested in the subliminal messaging, and so I googled a bit...
http://ogisuke01.exblog.jp/14976582/
You can see two pictures at this site. One is a scene from Sazae-san, a very Japanese anime, with a poster of Dong Bang Shinki in the back.
The second picture is a news show that has symbols resembling the Korean flag in the background of the set.
There's also a picture here:
http://google7.blog88.fc2.com/blog-entry-1373.html
It says "Karaメール" instead of "空メール" (kara mail). The Kanji is pronounced kara, meaning empty, but it would never be written out like that. I've only ever seen it use the Kanji. (kara mail is used when Joining mobile sites and stuff, you send an empty message and get an automatic reply and fill out stuff)
There are also a few pictures here:
http://blog.livedoor.jp/professor101...s/1521605.html
Most notable is the one with the woman with the tree and ribbons behind her. It was celebrating Tanabata, which has people write their wishes on paper and tie it to branches. In that shot, it says "I want to have beautiful legs like Shoujo Jidai" and "I want to be able to go to KARA's concert"
There's also a picture where it asked different age groups what their favorite Nabe ingredient is (a one-pot meal that boils various vegetables and such) and amongst all the groups, kimchee was the number 1 choice, which is a bit...strange. While this isn't impossible, it's unlikely.