Then they continued with more game titles, publishing 21 new Intellivision cartridges in total and bringing the Intellivision library to a total of 124 cartridges plus one compilation cartridge. In the fall of 1985, the INTV System III (also called the Super Pro System) appeared at Toys R Us, Kiddie City, and in a mail order catalog sent to owners. Over 3 million Intellivision units were sold and a total of 125 games were released for the console. The word intellivision is a portmanteau of 'intelligent television'. Development of the console began in 1978, less than a year after the introduction of its main competitor, the Atari 2600. INTV Corporation started with releasing Thunder Castle and World Championship Baseball, two game titles that were developed and completed by Mattel but never released. The Intellivision is a video game console released by Mattel in 1979. INTV System III is the Intellivision console that INTV Corporation released in black and silver colors. An unknown number of later Intellivision SuperPro systems have. was born, later changing it's name to INTV Corporation. The Intellivision is a home video game console released by Mattel Electronics in 1979. He even bought the rights of the biggest third party games. However, in 1984 former Mattel Electronics vice president, Terrence Valeski, bought the rights to the system, its games and its customer list from Mattel for 20 million dollars to continue the distribution of the system in a smaller scale. By 1984 the remaining stock of Mattel's Intellivision was being cleared out from stores. INTV System III or Intellivision Super Pro System is a home console that released by INVT Corporation in 1985.In 1983 the video game market crashed taking. This sports game is now abandonware and is set in an olympiad and athletics. In 1983 the video game market crashed taking down every major console. publishes Super Pro Decathlon on Intellivision. INTV System III or Intellivision Super Pro System is a home console that released by INVT Corporation in 1985.