QI and last up to two hours, although only 30 minutes of footage is used for normal episodes and 45 minutes for "XL" episodes. By 10:00 pm, recording has usually finished and the set has been disassembled. Roughly 16 questions are asked and about half of those make it into the show; 20% of material researched is used in a "QI" episode, while other facts may appear in the XL versions, a "QI" book, on "QI"s Twitter feed or on their website. The makers of the show insist that the answers are not given to the panellists beforehand. The host is
The Lord of the Rings: The Two Towers UK distributor, which had threatened to withhold advance supplies of subsequent DVD releases. As with "The Fellowship of the Ring", an extended edition of "The Two Towers" was released on VHS and DVD in November 18, 2003 with 45 minutes of new material, added special effects and music, plus 11 minutes of fan-club credits. The runtime expanded to 223 minutes. The 4-disc DVD set included four commentaries along with hours of supplementary material. In August 2006, a limited edition of "The Two Towers" was released on DVD. The set included both the film's theatrical and extended editions on a double-sided