The annual NAB Show takes place in Las Vegas this week, with temperatures forecast to reach 90F or over 30C. The heat is on. In less than a year, 310 days to be precise, some 1,700 television stations across America will cease analogue transmissions. While most of the country receives pay-television services, millions of sets will still be affected. So far over ten million coupons for set-top box subsidies have been requested. Ensuring a smooth transition through analogue switch-off will be the number one priority for the National Association of Broadcasters, which represents the interests of the free-to-air television and radio industry in America. By this time next year, it should be clear how successfully the transition to digital television has been completed.