For whatever reason, and I don't know why I do this, I call it the NES by spelling out the abbreviation, but I call the SNES the Super Nintendo.
This, not sure why or how this became a thing here....
Interesting since I'm British as well and I feel like I tail off the end of both a bit so they become more like Nezs and Snezs, probably regional dialect is a factor.
I pronounce it Color TV-Game personally...I agree, the Color TV-Game console was Nintendo's real true first Home console which was released in June 1977. It was released at the beginning of the first generation of video game consoles. Unfortunately it never released in America which is why most Americans never bring it up. However, to stay on topic I believe Nintendo's first console released in America is actually pronounced "NESSS".
The NES is short for Nintendo Entertainment System.
This. Quicker, easier and makes much more sense when we get to the SNES.