The yellow|white|red jacks on the back of your TV are "RCA jacks." RCA stands for Radio Corporation of America. The same RCA launched NBC, which launched CNBC, which is a dominant source of financial news in the US.
You plugged your Nintendo into a TV using jacks designed by the same company that told your parents which stocks to buy and sell.
Gets even weirder when you get into acquisitions, where Ben and Jerry's ice cream is owned by the same Unilever that is famous for its soap.
Then you must have grow up at a particular time which didnt have them. There was a time period where it would be unusual to have a TV or VCR without them.
European TVs generally used SCART cables (a sort of 1970s analog HDMI: https://en.wikipedia.org/wiki/SCART), from the 1980s until HDMI took over. It was, indeed, fairly common for a TV or VCR or games console to have _only_ SCART.
Odd standard; it had both composite and RGB lines, but also control lines, so, like HDMI-CEC, you could set it up so that your VCR couldn’t quite control your TV. It also supported daisy-chaining, a bit like SCSI, so you could connect your TV to your VCR and your VCR to your DVD player.
Even before SCART, European TV equipment tended to use DIN (you may remember this as the IBM AT keyboard connector) rather than RCA.
Oddly, there was a brief period where it was somewhat common for early HD TVs to have component RCA connectors; while SCART did support HD component, people apparently did not trust it.
I feel like the US has a history of inventing a thing and having an early version of it become popular. By the time it's mainstream in Europe, it has been improved and standardized, giving the appearance that Europe has more modern technology.
Perhaps the most famous example of this is magstripe card in the US vs EMV chip cards in Europe. The US had credit cards first, but standardized on swiping magnetic stripes. By the time they were widespread in Europe, the technology had advanced, so someone from the 2000s might think Europe did credit cards better. (The M and the V in EMV actually stand for the American companies MasterCard and VISA.)
In both cases, this is due to government regulation, not first-mover disadvantage. TVs showed up at about the same time in Europe and the US (first working TV was in the UK, and first regular TV station was in the US, but you’re talking about a year or so’s difference). SCART became a thing because the French government required companies to support it from 1980 on; previously European TVs generally used DIN.
As for the cards, again you can thank France; Cartes Bancaires introduced a predecessor to EMV in the 80s, and France moved quite quickly to make chip cards standard and then mandatory. Other countries followed in the 90s and early noughties. However, by the time EMV predecessors launched, there’d been credit cards in Europe since the 1960s (usually national standards).
Incidentally, this is also indirectly why the US was so late to the party with tap to pay. With chip and pin via EMV, it became essential that card terminals be available to the customer; an employee taking the card in the back wasn’t an option. So by the time tap to pay was introduced in the late noughties, more or less all shops and restaurants already had either counter-mounted or portable terminals, so it was an easy transition. In the US, it was more common to have swipe machines not necessarily directly accessible to the customer, which made tap to pay less attractive, and it didn’t really become near-universal until Apple and Google Pay forced the issue (actually, even then it didn’t become universal; I was in SF last year and was in a surprisingly large number of places which only had swipe machines).
In Ireland (and I guess the UK), we'd have a lot of TVs with both. Usually they'd have multiple SCART connectors, but only a single RCA connector. It was common for stuff like games consoles to ship with a RCA to SCART adapter.
I will say in terms of physical connectors, by the later years it was quite common to have poor connectivity with SCART - stiff cables leaving the connector at an angle that would gradually lever it out of the socket, the flat pins that would break off after repeated insertions...
> Usually they'd have multiple SCART connectors, but only a single RCA connector
I'm in Ireland as well, but I remember that as a high-end TV thing, mostly, though it did get more common towards the end of the analog connector era, especially for flatscreen TVs. Your generic 21" CRT TV usually just had a single SCART connector and a tuner connector, tho.
I suspect that the reason RCA (especially _component_ RCA) became more common in the flat-screen/early HD era was largely that, while SCART supported component output, the UX tended to be really bad, and there was no way for the TV to signal support to the attached device. So, virtually all set top boxes and DVD players could output RGB component via SCART, but this was never turned on by default, and the user wasn't necessarily aware of it.
One part of the company designed infrastructure, and another part used it. The results feel disparate because they're very separate markets.
Amazon did it on a shorter timeline and shipped the usage before the infrastructure, but it's not as wildly different as you state. The same seed grew branches in different directions, whose tips ended up very far apart from one another.
It seems weird but realizing one supports the other it kinda makes sense.
For example, Discover spun out from Sears attempts at having an in house credit card. Ally started as a financing division of GM. In both cases, you'd think similarly how it's weird one company runs both a bank and builds cars or sells houses.
It doesn't seem that different, in that Amazon started AWS to support its primary business, then realized they could sell it to others.
You plugged your Nintendo into a TV using jacks designed by the same company that told your parents which stocks to buy and sell.
Gets even weirder when you get into acquisitions, where Ben and Jerry's ice cream is owned by the same Unilever that is famous for its soap.