50 Longest Running Primetime TV Shows

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Source: Courtesy of National Geographic Society

10. National Geographic Explorer (1985-present)
> Series run: 33 years
> Network: Nickelodeon, TBS, CNBC, MSNBC, National Geographic
> Genre: Documentary
> IMDb user rating: 8.1/10

Source: Courtesy of PBS

9. Wall Street Week (1970-2005)
> Series run: 35 years
> Network: PBS
> Genre: News
> IMDb user rating: 8.6/10

Source: Courtesy of PBS

8. Frontline (1983-present)
> Series run: 35 years
> Network: PBS
> Genre: Public affairs
> IMDb user rating: 8.6/10

Source: Courtesy of PBS

7. Nature (1982-present)
> Series run: 35 years
> Network: PBS
> Genre: Documentary
> IMDb user rating: 8.8/10

Source: Courtesy of Warner Bros. Television

6. This Old House (1979-present)
> Series run: 39 years
> Network: PBS
> Genre: Home improvement
> IMDb user rating: 7.8/10