Band III used to be 175MHz to 275MHz?
1800MHz is just 1800Mhz. When did it become Band III?
700MHz & 800MHZ LTE will only be ultra fast if you are the only user on a mast and the window faces it and distance is less than 1km.
The existing 900MHz, 1800MHz and 2100MHz are not used efficiently (A RAN is best method). 2300MHz, 2500/2600 MHz are for short range Urban LTE (WiFi Hot spot replacement).
It's a shame that spectrum is now purely seen as revenue source via licence. A very short sighted view for a irreplaceable strategic national resource. Also the current pricing model instead of promoting efficient use of spectrum (the alleged reason) results in a poor service and wastage compared other approaches.
Ofcom of course want rid of ALL broadcast TV. Cable, fibre and Satellite. Mobile can't replace Broadcast for portable or non-fixed infrastructure of Radio or TV. That's proven. Simple mathematics of Unicast vs Broadcast bandwidth per user.