I already owned this Python classic on VHS, but decided to treat myself to the DVD, based on the added value of the extras. Good move! Lots of fascinating background material providing insights into the fevered imaginations of the Terrys and some totally new stuff including Michael Palin's cocoanut sketch and the utterly bizarre but delightful MP&THG in Lego!  The sing-a-long-a-Sir-Robin got the whole household joining in and the option for the weird but inspired Shakespearean-style subtitles adds a whole new dimension.