I have taken the hand below from one of the games/auction on the recent Sky Arts Bridge Program. The details of the possible auction, given by the experts is also listed. Being fairly new to the game I do not understand the bid of 5D by South. I have asked some friends and looked up some references, but it does not appear to match the requirements of a slam cue-bid. Perhaps someone can explain.
The details are:
Auction suggested by the 'experts'
South 1H, West 1S, North 4H, East 4S, South 5D, West 5S, North 6H, East 6S, South Pass, West Pass, North Double, All Pass