Low band TV in Britain.

[Colly0410]

I've often wondered why ITV didn't use low band/band 1? I'm thinking the London area could have used channel 5 & the north of England reused channel 1 as used by BBC in London as was far enough away from London to avoid co-channel interference. The gap between channels 1 & 2 was quite big because the original channel 1 from Alexandria Palace was double sideband so would have hopefully avoided adjacent channel interference. I suspect the real reason is the BBC took the hump & blocked ITV from using low band/band 1 for political purposes...