81% of US households own at least one HD TV, according to the Leichtman Research Group, and 51% own multiple HD TVs. This is up from 46% and 17% in 2010. UltraHD TV awareness has grown rapidly, to 41% of US adults (from 30% in 2014). 26% of those who have seen an UltraHD TV are interested in buying one, compared to 6% who have not seen one. The Group also found that 52% of those who have purchased a TV in the last year have a smart set, and 38% have a connected smart set. About 11% of all TVs in US households are connected smart TVs.