HD-Ready and other things - http://www.digitaleurope.org/
The HD-Ready logo is defined and managed by Digital Europe (formerly EICTA). The meaning is clear and has been for some time. The TV is ready to connect to an HD input device and has sufficient resolution.
"HD-Ready" - Means it will work show HD pictures with a Blu-ray player, Sky HD, Freesat HD, or Freeview HD box. If you have got a non-HD-Ready TV you really are stuffed.
"HDTV" - is the logo for built in decoder. And manufacturers have been responsible and not used this in the UK. DVB-T TVs with HD MPEG4 decoding have been available since late 2007 and have been sold in the UK without being promoted as such while they are being happily used on the continent for HD services.
Both the above logos have 1080P variants indicating 1920x1080 display and input support as additional requirements.
DVB-T2 demodulators are not yet available in quantity even to major manufacturers. The spec was finished a little over a year ago and actually development has gone as well as could be expected. There is no possibility of software upgrades to any DVB-T demodulator (unless it is FPGA based and about the size of a 32" TV).
This means that PC USB tuners, PS3 PlayTV, tuners STBs, PVRs and TVs current and past will not receive Freeview HD with existing hardware.
If anyone does know of anywhere that DVB-T2 products can be obtained please post the link. Especially a USB tuner would be good.