Here is another Sea Harrier related YouTube link:
Navy Pilots - Fleet Air Arm - Episode 1
Note that the pilot explains the fleet defence role as defending our ships, not just the carriers as the narrator suggests. There are also links to other programmes in the series.
As with virtually everything on YouTube, it has attracted a number of retarded comments - I particularly like the one suggesting the Sea Jets at "Cauldrose" are at 24 hour readiness - no problems with regenerating the aircraft, or finding and training pilots and maintainers!
However, one part of our anti air warfare capability is better than it was - Seawolf is being
upgraded, and improved sensors will increase the range at which a target can be engaged.