..the actual filming of the show.
I just talked to the producer, we have worked together on several poker filmings.
Actual GN chips were used in the filming.

The chips being sold here were used for a few hands at South Point one day. The comtroller went thru the roof and the chips were pulled because they are not gaming compliant nor approved.

The Producers secretary is having a couple complete sets dropped off to me next week.
I would imagine he will put these sets into the hobby same as he did with the Poker Superstars sets made for The Palms and Morongo. He had those sets framed and sold on ebay.

They are not rare nor will they ever be rare.