And thank you, everyone who has posted links - it's been a trip down memory lane here as Chez Schaden.
I was watching and realised that I was getting shivers down my spine and my eyes were pricking with tears, it was so beautiful! I never get that now - never . . . 
Arlene and Craig were such harsh judges - but always constructive; as they said - if no-one tells the dancers what is broken, they won't know they need to fix it.
Len kept everyone right and even Bruno was almost under control (I can't bear Bruno now - he has become a parody of himself).
Now we have Shirley - who takes against people and is vindictive: -Motsi - who is, quite frankly a waste of space (does she know ANYTHING about dance) and Bruno who has slipped over the edge into comedy. Only Craig remains as a reasonable judge, and he has lost much of his bite - I suspect he's been told to tone it down.
A much better show in the Old Days.