The premiere of “Miami Medical” did a 4.8/9 for the hour, averaging 7.54 million viewers. Not only did “Miami Medical” improve solidly on its lead-in, but it also improved slightly half-hour to half-hour. It’s not a big premiere, but in context, it looks solid. Second place on the hour was the 4.4/8 for “Dateline NBC,” which had a 1.6 rating to tie with CBS for the demo lead. ABC’s “20/20″ was third.

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