It wasn't too long ago that you'd have to pore over shortwave radio schedule listings, cross referencing time of day, with frequency in kilohertz, in order to listen to long range, overseas broadcasts -- picking out the words from the spooky radio harmonics. Then along came the Internet, which allowed for a continuous stream of mellifluous programming to be place-shifted anywhere. Podcasts then allowed for a form of time-shifting, and ultimately the smartphone and mobile network gave us portability.
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