Terry Valeski was the head of Marketing at Mattel Electronics in 1983.
By summer 1983, Mattel had laid off all employees involved in hardware development and then programmers, so by 1984 the Intellivision division was "gone". Valeski and a group of investors bought all the remaining stock and the rights to all the Intellivision product line. Known as Intellivision Incorporated, they began to sell off the remaining stock of Intellivision games, and to sell games which had been ready for release right before Mattel Electronics demise and sold the catalog through the INTV Corporation.
Source Links:
media0101.intvprime.com/ba4ef/intellivision-echo/References-Unsorted/De-Re-Intellivision-pt1.txt