This week sees the fifth annual horse-driving trials on the Queen's estate at Sandringham.
The first of two programmes about the start of this event in 1983 follows three of the competitors in training.
PRINCE PHILIP has the use of the Queen's bays and Windsor Park to practise in - but has little spare time.
KAREN BASSETT , from Surrey, depends on support from family and friends. And for Suffolk blacksmith ANDY MILLS, it's all down to do-it-yourself and a passion for a new hobby.
Reporter Susanne Hall Film editor KAREN HEWARD Producer MIKE PURTON