Since free terrestrial mobile TV, or t-DMB, was launched in South Korea in 2005, million of commuters on buses and subway trains have also watched game shows, sports, news and dramas on antenna-fitted cell phones with tilting screens or pocket-sized TV sets.

Broadcasters in the U.S. are hoping for a similar trend as they roll out the new mobile television standard ATSC-M/H. It will allow TV stations to put their live broadcasts on mobile devices with relatively little [...]