(I was addressing the parent's claim of 'But English also has no word for "television"')
The word telly is not in common usage in the United States. It’s understood here to be UK slang for TV.
Your example is largely irrelevant; I wouldn’t call a spyware TV founded by Russian born dude a cultural touchstone.
Regardless of origin the word television is an English word now. The ability to adopt loan words from other languages is one of the many reasons English usage is so widespread.
A major score was finding a dime or quarter on the street. When the Whatchamacallit first came out they were 25 cents!
The cheapest way I’d think to generate a visible frequency comb would be to frequency double the IR comb laser using a nonlinear crystal like BBO.
Also here the accuracy is relative and not absolute which is fine for communications. The absolute accuracy of the comb may not good enough for spectroscopy in the visible.
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https://www.visaforchina.cn/DEL3_EN/tongzhigonggao/327343163...
And to be clear, this is not the previous restricted "X hours transit, don't leave the city" thing, but a full blown 30 day entry permit valid for the entire country (minus Tibet), any port of entry, any port of departure.
Yes, this is a massive departure from their previous policy, but yes, it's real. Having also gone through the regular China visa process multiple times in the past, I could hardly believe it myself when I used it earlier this year.