More than 30 years ago. Believe it or not, the Intellivision has the same service, using the same basic technique in 1981: https://www.intvprime.com/intellivis

More than 30 years ago. Believe it or not, the Intellivision has the same service, using the same basic technique in 1981: https://www.intvprime.com/intellivision-faq/intellivision-faq-section-2-0-hardware/#2.6%3a+What+was+PlayCable%3f https://www.intvprime.com/intellivision-faq/intellivision-fa... https://www.intvfunhouse.com/mattel/playcable.php https://www.intvfunhouse.com/mattel/playcable.php (The Atari 2600 got a competitor but despite being the older console it was released in 1983: https://www.wired.com/story/streaming-games-actually-started-the-80s/ https://www.wired.com/story/streaming-games-actually-started... ) So, 43 years ago.