Check it out here https://www.voxodyssey.com/intellivision
We played Armour Battle and B17. I was hooked. I mean first-time-heroin hooked. Ironically I never actually played Intellivision again.
Some months later we got an Apple 2 at home, and I read the book it came with (on writing code in basic.) That was more than 50 years ago. (Wow that makes me feel old...)
It's unusual to live and work through the very genesis of an industry so I feel very blessed. It's really hard to convey how far we've come, and yet how much further we might still go.
Tip of the hat to Intellivision though. I only ever saw you once, but once was all it took.