From what I've heard, back in the day, Atari paid $10k for 5 (10?) 'Black Boxes'
to be made that perform this Lynx to TV task -- As The_Laird said, they were
used for game demonstration and review purposes. And as I understand it,
Atari was very stingy about loaning them out, and were quick at requesting
them back if you fell into disfavor with Atari. I remember several magazines
refusing to do a proper review of lynx games, or bad-mouthing Atari, after
they had their 'Black Box' revoked. I bought one from B & C, back in 2003. At
the time, Bruce had sold at least one other one, and had another he said he
was keeping for himself; Not sure if he ended up selling it. No idea where the
other ones ended up going to. Incredible item, shame it wasn't commercialized.