look, british jazz trumpeter ken colyer introduced the new orleans jazz sounds to this country. coronation of queen elizabeth ii. and now, 70 years on, all eyes and ears are on london for the coronation of king charles. beaming a live event like that across the world is no mean feat. so alasdair keane's been taking a look at some of the technology that's being used. newsreel: the world's finest equipment will be used, including the largest telephoto lens in the world and a zoom lens which cost over £1,000, to bring the complete magnificent spectacle to this theatre... 1953, and the coronation of queen elizabeth ii was a huge moment for the technology behind broadcasting. fast forward 70 years and, while the coronation of king charles might not be sending people to the shops to buy their first tv, it is seeing new tech being rolled out to broadcast the events in london to screens right around the world. it's here at the site of loch lomond in scotland, more than 400 miles away from buckingham palace, that a network that will connect many of the cameras is being put through its fi