$ head -c 100 /dev/urandom | sha256sum
Same pain as you any time I have to type the password in someplace I don't have my password manager installed, but with the advantage that its just [0-9a-f]. I figure with that many characters there's no need to use the full character set.
Also honestly just tend to use weaker passwords on things I'll need to log into on other machines. Usually those are accounts I don't care as much about anyway.
I'm sure there are similar schemes for other devices (Chromecast/FireTV?). But when the TV itself is "smart", I bet it's infuriating.
But is Apple’s speech-to-text feature (like on the iOS keyboard or in tvOS) recorded? If not, I’d venture to say I’m (currently) OK doing that with Apple services. They’ve prioritized security and privacy admirably.
Hulu does this much better though. They display a hulu.com shortlink on the TV app that you type into your browser on a computer, login if you aren't already, and click a button to authorise the TV.