On Sunday, February 5th, 2012, at 18:44:43h +0000, Clive wrote:

I know colour came in, in 1967 on BBC2 but I thought that broadcasting
on BBC2 started in 1962. I know it was never on 405 lines.

From http://www.hywel.org.UK/bbc2launch/

QUOTE

When BBC2 launched on April 20th 1964, ...


UNQUOTE

Remember also that BBC-2 was the first regular TV service transmitted in
UKofGB&NI on UHF channels.

So not only did it require a new TV to be able to tune to UHF and demodulate
the signal to 625 lines, it also needed a separate antenna to the VHF Band I
and VHF Band III antennas being used to receive the BBC television service
and the independent (commercial) television service.