I was in DannyB's stream, and a discussion came up about if it is allowed or not. What's the verdict?

I am a beginner (not to speedrunning, just to OOT), I've beaten the game, looking for a category that isn't incredibly glitch heavy. I've heard GSR isn't too bad.

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I'm thinking of buying an N64 for runs instead of emulator, but I don't have a CRT TV. Is it worth investing in an old chunky retro TV, or just playing on an HDTV? I've heard retro consoles look better on CRT TV's, but I don't get why. Just curious on the specifics and nuances!