More than 220 million smart TV sets will be sold globally in 2017, United Kingdom-based research firm Informa Telecoms & Media said Wednesday. Informa said the number will rise from 54 million smart TVs sold in 2012. In five years time, Informa predicted, 31 per cent of households worldwide will have a smart TV, with the highest penetration in Western Europe at 64 per cent and North America at 63 per cent. “However, while Smart TV connection rates are rising, they will continue to lag the connection rates of games consoles and media streaming devices (such as Apple TV and Roku),” the forecast said. Informa said the number of smart TVs will grow and that the devices key to the digital home experience will be replaceable onces such as smartphones, tablets and gaming consoles. “Informa estimates that in 2017 more than half of the 800 million Smart TV sets will only be used as dumb screens,” Andrew Ladbrook, senior analyst at Informa, said in a statement. “Moreover, while any ‘smart’ TV bought in 2011 or 2012 can be used for streaming online video services for a few years, they lack the processing power and the necessary hardware to perform those Smart TV functions that will be standard in 2015.” He added that smart TVs purchased in 2012 will be “obsolete” by 2015.