I’ve just caught this TV program, on about it’s third repeat.
It is the story of the Cassini probe at Saturn and was obviously made at the end of mission.
It covers the same territory as the BBC version made at the same time and was probably a different cut of the same source video material for the American market by WGBH.
But it has significant other material too.
In particular, a straightforward explanation of ‘propellers’ in the rings.
There are two further repeats at 12:40 and 19:50 on Sunday February 4 on PBS America, Freeview channel 94.
If your TV or PVR does not have a channel 94 you need to re-scan. It’s a new one that turned up around Christmas time.
Roy.