This year's X Factor will be beefed up with a new Sunday results show when the live stages are reached.
From mid-autumn, the usual Saturday programme showcasing hopefuls' performances will be joined by the new peak-time Sunday show, also featuring guest stars.
Both shows will be live, so viewers will have a greater opportunity to vote over weekends.
The official announcement follows widespread speculation that plans were being drawn up for a Sunday show.
Last week it was announced that Strictly Come Dancing is abandoning its Sunday night results show in favour of an extended Saturday night programme.
Following the shows, The Xtra Factor will also be broadcast on both Saturday and Sunday nights during the live stages of the series.
The 2008 series of The X Factor was the most successful ever, watched by an average audience of 10.7 million viewers and a 43.9%, across its run.
The X Factor returns to UTV at 7pm on Saturday, August 22.
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