Money grabbing
I have some sympathy...
For both views
Ofcom and ISPs
A: Put HD on Satellite (BBC/ITV/C4 Freesat, not foreign proprietary BSkyB).
sell off 700MHz to 860MHz and have real 4G mobile internet with 100Mbps. (but only if one nationwide operator gets all 150Mhz, otherwise you only get 3G speed and fragmentation of device support).
Even with ALL channels at MPEG4, you could only have a handful of HD.
However I don't trust Ofcom or Comreg to do that right and it's looking very confused with the FCC & USA.
Either Flash-OFDM or Mobile Wimax technology does about 4Mbps/MHz spectrum, so 150MHz allows in theory a total per sector speed of 600Mbps. This would allow approx 24 users 25Mbps download, or 50 users near HD quality IPTV. Note that 3.6Mbps HSDPA is for 5MHz and only for 1 user. Max connected users in a sector 24.
Realistically there is no technology that will do much more than 8Mbps/MHz and for larger cells the limit is close to what Mobile WiMax and Flash-OFDM can do today.
When people talk about high speed Wireless always ask what power, bandwidth and background noise they mean. An adjoining cell can equal more "noise".
OR
B: You have same selection of FTA radio, TV and HD on Terrestrial as on Satellite.
A: is only acceptable if communal Dish systems are mandatory for all dwellings with more than 4 "households" (even if one person).