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Until analogue shutdown in 2012 the main London TX used these channels:
ITV: 23 (from 1969)
BBC1: 26 (from 1969)
Channel 4: 30 (from 1982)
BBC2: (from 1964) 33
Channel 5 (from 1997) 37
All horizontal polarisation.
BBC1 405 line was on channel 1 (45MHz vision, 41.5MHz sound) until 405 shutdown in 1985
ITV 405 line was on channel 9 until 405 shutdown in 1985
Both vertical polarisation.
There's a surprisingly large number of Band 1 and Band 3 aerials still surviving on people's chimneys. A lot of the Band 1 aerials were X shaped.
VHF FM radio was trasnmitted from 1954 in Band II. Originally with horizontal polariastion, now with mixed polarisation which is better for portable and mobile reception. You don't see many Band II outdoor aerials as most people don't bother. The horrible little "halo" aerials have less gain than a dipole but work well in many areas. I have one on my chimney.
DAB digital radio is broadcast in Band III, vertical polarisation. An old ITV Band III aerial often works quite well even though the frequency is a a little low. Again most people just use the set's own telescopic aerial.
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