I've got the 12-video full set and the Ardennes Offensive is seen in Volume 10, 'Pincers'.

Incidentally, this part was written by the award-winning documentary-maker Peter Batty, who had already produced a programme entitled 'Battle of the Bulge'. This can still be found on video and is reckoned by many historians ( Danny Parker, for one ) to be the best programme ever made about the battle. Because it was originally screened in 1969, it includes interviews with many key figures such as Manteuffel, Clark, Hasbrouck and Strong.

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"Stand by to pull me out of the seat if I get hit" - Guy Gibson