Some TV shows are meant to gulp down like a shot of espresso, your streaming miniseries and anthology seasons and multi-part docuseries. But others are made to linger over like a fine glass of wine, only getting better with time. These long-running titles are the latter: programs that have been allowed to deepen in complexity, expand in character and refine their essence.

If you're looking for a series to binge not over the course of a weekend but over weeks, maybe months, these decade-spanning shows are for you. From a fan-favorite medical drama to a legendary animated series to one of the best cop shows of all time, here are three TV series that are still airing after 20-plus years, as well as where you can stream them now.

'Grey's Anatomy'

America's longest-running medical drama and

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