I've only ever seen Neptune as a blue dot. I understand you can see some of it's moons at times in a big aperture scope.
Same with Uranus - coloured disc only. I haven't tried for any moons but they should be a bit easier (although I was reading today that Uranus reaches aphelion in Feb, makes things a little dimmer than they could be).
I don't think I've ever heard of any amatuer visually seeing the rings - they were only discovered in 1977 and only after the planet occulted a star, the star blinking on and off as the rings passed in front of it. If it took that long to even detect they are there I don't think we have much hope of a visual sighting in our small scopes.
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