There is a fascinating clip on YouTube of 405 line BBC TV being received in New York (from London) presumably by F2 or multi-hop sporadic-E propagation in 1938. This is the only example of a pre-WW2 live 405 line BBC TV transmission known to be recorded. The image shown left is of the female TV announcer. The signal comes and goes as the QSB takes the signal out of sync. Totally fascinating.