Now TV have released UHD and HDR on some of their content via a new Boost tier called Ultra Boost which is £9 a month, however if you're currently on a Boost offer they are upgrading you to the new tier for the remaining time on your offer (in my case I will be getting it for £2 a month until the end of December
, then it will be £6 a month.
It also includes Dolby Atmos sound on some content, however the current Boost will now only allow you to stream on 2 devices a month whereas Ultra Boost remains at 3.
I've tried it on my Roku sticks and the UHD content works very well, also I'm pleasantly surprised to find it also works on the LG TV webOS app when Boost previously didn't even include 50fps on the sports channels.