On the DVD's of BtVS there are Easter Eggs. Here is a guide to find some of them
1. Season 6, Disc 2
On the 초 DVD select the episode 'Once 더 많이 With Feeling.' In the following screen go to the 'Language Selection' and there highlight the menu entry 'English for the hearing-impaired.' Now press the 'Left' 애로우 key on your remote control and the Buffy 'B' will be highlighted giving 당신 access to 3-minutes worth of footage from the soundtrack signing at Tower Records in Los Angeles.
2. Season 6, Disc 5
On the fifth disc select the episode 'Normal Again' and then go to the 'Language Selection.'...