From the Telegraph:
Rather than the presenters in front of the camera, it was the BBC’s behind-the-scenes team that deserved the credit. The corporation was responsible for filming the services and the processions using 213 cameras in Westminster Abbey, Windsor and various points along the route, then sharing the images with ITV, Sky News and the rest of the world. It was brilliantly done. The most striking shots were taken from high above, looking down on the coffin from the ceilings of the Abbey and St George’s Chapel.
From what I've been told, this is such the understatement. Setting up, filming, getting the manpower for (an enormous number of cameramen are contractors now, who aren't employed directly by the BBC) and then directing 213 different cameras in the space of 10 days is both insane and quite simply astonishing. Especially on top of also having a huge outside broadcast in Edinburgh to also manage at even shorter notice. Even with planning and regular rehearsals, even simple things like tracking down where the equipment is this week and which staff are available, is something else.
The commentary from the BBC might not be to everyone's taste. That misses the point, that the BBC provided the feeds to literally everyone else.
Two of my close friends worked today and I'm so proud of them. They didn't have a uniform and went unseen, but they both played a significant role over the past week.