Being the only news broadcaster working in 16:9 has it's pitfalls though. An example is when there is a live presser and the Beeb take other broadcasters pictures. Sometimes the tops of peoples heads are chopped off, or the Astons cover the speakers mouth, or both!
The worst culprits for this is (sorry Mr SkyNews

) is Sky. They like their tight close-ups. When the Beeb call Skys SatVan to losen the shot a little, they explain that they are shooting primarily for Sky audience & providing pictures to the rest of the pool who predominantely require 4:3. In other words, 'Tough!'
However, when the Beeb provides the pool feed, such as the recent N.I. peace talks, the SatVan broadcast in 4:3 & take 16:9 audiences into consideration to keep everyone happy