TV technology has seldom been used to better effect than in the BBC's current coverage of the Open Championship.
Replays in the new hi motion system, which provides a very slow replay while retaining the finest detail, of Tom Watson's swing demonstrate the key to successful golf in a way that mere words have never been able to emulate. Seeing the rock-steady positioning of the head while the rest of the body appears to rotate is to understand exactly what a succession of golf pro's have tried, and in this writer's case, failed to explain over a long period of time.
TV technology is brilliant when used appropriately. Sky's coverage of the Test is using the hotspot device which demonstrates precisely where the ball strikes - bat, pad, body. Again, this adds a lot to the viewer's appreciation.
Golf and cricket are ideal for this approach. There is time for the analysts to do their work while nothing is happening on the field. It doesn't work so well in fast-paced sports like football and rugby league where over-indulgence in video analysis occasionally means live action is missed.