Complex sentence: In addition to the 84 cities, express highways and Seoul metropolitan subways already covered, TU Media expanded its satellite DMB coverage in 2006 to include the Korea Train eXpress (KTX) Seoul to Busan line, Busan subways and 10 metropolitan Seoul local highways.
Split into simpler sentences: In addition to the 84 cities, TU Media provides service in express highways and Seoul metropolitan subways. In 2006 the company expanded its satellite DMB coverage to include the Korea Train eXpress (KTX) Seoul to Busan line, Busan subways and 10 metropolitan Seoul local highways.