The Melancholy of Haruhi Suzumiya (anime)/Easter eggs

DVD
From Anime News Network:
 * Japan and Taiwan DVD #2: A "_MIKURU" file folder contains many pictures of Mikuru Asahina taken by Haruhi Suzumiya. Supposedly a secret stash belongs to Kyon.
 * Japan DVD #7: Includes a full choreography for the ending.
 * U.S. Blu-ray Disc #3: In the Extras menu of Disc 3, just press up to move the 'H' icon above "Hare Hare Yukai" TV-Version Special Ending. Select the empty field and you'll get a 22min, live action CCTV gag of Haruhi and Kyon "John Smith" (when Kyon goes back in time during Tanabata to meet Haruhi) messing around on school grounds and chalking the field.