The Halcyon is a home video game console produced by RDI Video Systems. The system was planned to be released in January 1985, with the initial retail price for the system being US$2,500. Fewer than a dozen units are known to exist and it never reached most retailers because of a lack of affordable disc players. The design featured a LaserDisc player and an attached computer, each the size of an early-model VCR. Of the six games planned, only two games were released: Thayer's Quest and NFL Football LA Raiders vs SD Chargers. RDI Video Systems claimed that the system would be entirely voice-activated, and would have an artificial intelligence akin to HAL 9000 from 2001: A Space Odyssey.