@AntifaNI
@lemmy.worldsuch as tv programs
People do view TV Channels across timezone boundaries right now.
A lot of folk in the Netherlands and Belgium watch British TV and North America, Australia, Russia etc must have lots of TV channels with audiences spread across more than one timezone.
To say noting of migrant workers/families in various countries who largely shun the local TV channels in favour of satellite/internet TV from their home country. (Indeed the advent of internet TV is making the concept of TV schedules pretty obsolete anyhows)
How do they cope ?
Yes trains and to a lesser extent telegraphs gave us time zones.
But now we have mass air travel and the internet.
In Czechoslovakia they used to drive on the left until some visitors dropped by in early 1939 and persuaded them that driving on the right made more sense.
In 1940 something similar happened in the Channel Islands but after 1945 they reverted to driving on the left (or at least those whose cars hadn't been requisitioned did)
Columbus didn't "discover" shit.
Prior to 1492 the Americas were populated by people completely unaware of their own existence.