Why? Do you know how much it cost to have HD channel? Do you know how much Band width it take up? For what, a 30min promgramme, and nothing really else. Its not cost effective.
Because it's 2017. and HD has been around for over 10 years and anyway ITV can broadcast regional news, And besides, BBC One HD has regional variants for Scotland, Wales and NI.
This is Carlton Television - Part of the ITV Network. Now at 11 O'Clock, Time for the ITV Nightly News from ITN.