Complex sentence: There is evidence to suggest that the TV Hawkeye did his surgical residency in Chicago, however; in conversations in several episodes, it's clear that he knows the town in ways only someone who lived there for several years could.
Split into simpler sentences: There is evidence to suggest that the TV Hawkeye did his surgical residency in Chicago, however. In conversations in several episodes, it's clear that he knows the town in ways only someone who lived there for several years could.