Need to work out how to recreate this - Very quickly! Sure there must be a tool in After Effects.
I started off by trying to create a segment in Illustrator and applying a gradient to the segment imagining it may be able to be animated however this was not working.
However I still had not created all the 'rays' so I experimented with laying over the effect from a Photoshop image as follows:
This did not work as it was too static.
Then I had a brain wave by copying and placing the first effects layer at six degree angles until I had made 90 degrees almost created the effect I was after:
From research I found the BBC used Gill Sans and the length of the End Board was about 4 seconds. I also found a copy of the BBC four logo.
I added the text and Jpg and applied the same radial wipe effect to these