Sadly no SS-30 in this otherwise fairly comprehensive film about string machines, but then the SS-30 was never sold in the US. Yes, it says the SK-20 was the first Yamaha stringer too, but you have to forgive them.
It's lots of fun - despite this carping - and I haven't seen anything else cover as much ground in video form with actual examples of so many different instruments.
Edit. The SS-30 has a cameo in this Syntaur film about the DX1!