Another one is (British) TV channels. I'd recorded some Simpsons, and there was something else I was interested in, so I tried to find the same channel again. According to the logo and some weird and opaque Toyota ads, it was channel "T4". So I used about 20 minutes scrolling through the list (don't get me started on the slow, low-rez, and clunky cable interface), and I couldn't find it. But I did find following other channels with "4" in them:
C4 + 1
E4 + 1
C 4 HD
Film 4 HD
Film 4 +1
ITV4 + 1
Niiiice and clear what everything is and where it came from and what it has.
There are hundreds, these are just the ones with "4" in them!
... Did a bit more research: apparently it's a program (sorry, "programme") called "T4" (don't give it all away now), not a channel. And yet I couldn't find the program at the given channel and time.
Anyhew, not important, just something that stuck in my craw.
I'm guessing it's a lot less opaque to somebody who has grown up in this country, watched the average 4-5 hours of TV a day, and seen the channels come in one by one. Maybe. Or maybe they are too apathetic to give a hoot.