In this week's match for the Whyte and Mackay Scotch Trophy, it's the turn of William Roache, from Coronation Street, and Terry Wogan to join Gary Player and Tony Jacklin.
In one of the closest fought battles of the series, there are moments to savour from all four players.
Peter Alliss describes the action over nine selected holes of the Ailsa Course at the Turnberry Hotel.
Assistant producer BARBARA SLATER Television presentation
FRED VINER. ALASTAIR SCOTT Producer HAROLD ANDERSON