Are you already missing ER? The long running medical drama ended its 15 year run last Thursday but it seems like only yesterday that George Clooney, Anthony Edwards, Noah Wyle and Julianna Margulies first appeared on our TV screens. Once the most popular show on the tube, the series went on to win 22 Emmy Awards. Although the show's total viewers have declined in recent years, the final episode scored the biggest ratings for a series finale since Murder She Wrote in 1996. If you want to watch your favorite episodes again, the Library owns the first ten seasons on DVD.