answers: the 100th episode
context: 2011–12 television schedule, "Gossip Girl" stayed on Monday night and moved to the 8:00 pm Eastern/7:00 pm Central timeslot as a lead-in to "Hart of Dixie", which is produced by "Gossip Girl"'s executive producers Josh Schwartz and Stephanie Savage. The fifth season premiered on Monday, September 26, 2011. Filming for the season began on July 7, 2011. On August 3, 2011, The CW ordered two additional episodes for the fifth season, which will now total at 24. Executive producer Joshua Safran announced that he would be "pulling out all the stops" to make the 100th episode of the show special, </s> couple under the prince's coronet and include the wording "To celebrate the marriage of Prince William of Wales and Catherine Middleton 29 April 2011." The Lord Chamberlain's office approved a longer list of memorabilia, including official mugs, plates, biscuit tins, and porcelain pill pots. The document also clarified the use of William's coat of arms and pictures of the couple on such items. Initially, the Palace refused to sanction official tea towels, which, along with aprons, T-shirts and cushions, were deemed, "in poor taste". However, the restriction on tea towels, though not the other items, was later reversed. Sales of </s> received at Balmoral by the Queen, Prince Philip, and Queen Elizabeth The Queen Mother. The couple then had several dates in London. Diana and Charles had been seeing each other for about six months when he proposed on 3 February 1981 in the nursery at Windsor Castle. Diana had planned a holiday for the next week, and Charles hoped she would use the time to consider her answer. Diana accepted, but their engagement was kept secret for the next few weeks. Diana later claimed that the couple had met only 13 times in total before the announcement of their engagement.
question: when do blair and the prince get married