In the United States, footage from judges' houses was originally scheduled to air on October 12, 13 and 18. However, due to weather delaying the start of the 2011 American League Championship Series, the footage from judges' houses 1 was moved to October 13, with footage from judges' houses 2 seen instead on October 16. The footage from judges' houses 3 aired on October 18 as scheduled and featured footage of the judges revealing their four finalists (or five in the case of Cowell) in each category to take through to the live shows. In Canada, the judges' houses 1 episode was broadcast as originally scheduled on October 12. No episode was shown in Canada on October 13, with CTV and CTV Two opting to follow Fox's scheduling changes to take advantage of simultaneous substitution rules.