Ride on the Seoul metro or take a bus around the city’s streets and you will see passengers gazing at their mobile phones with rapt attention, earplugs firmly in place. They are watching television. Since the first services were launched in 2005, mobile-TV services have garnered over 7.5m customers. The signals are delivered via terrestrial and satellite broadcasts, a far more efficient approach than sending individual data streams to each viewer’s handset, as is mostly done in other countries.
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