And they can be found online pretty easily: https://himawari8.nict.go.jp/.

I remember there's some tools to use the images as desktop backgrounds: https://github.com/boramalper/himawaripy

I remember watching grainy B+W ones in the 80s via a dish. It might have been a slow scan signal back then? It blew my mind watching the Earth live as a disk, seeing the weather in realtime.