LED lamp with switching power supply is not much better than the CRT. Even 12V lighting with a transformer is visible. Heck, even a - 150dBFS tone can be seen in the FFT.
Yeah, the EMI is likely way less bothersome to me than the actual audible buzzing they emit, anyway. Maybe we'll get 480Hz refresh OLEDs at some point.
https://imgur.com/a/bqSAO3Q
Here's an album with the measurements. CRT looks far worse than the Plasma TV here, but note that it was much closer for this measurement.
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