TV Shows That Ran Through ENTIRE Decades ???

Here is a list of all prime time scripted series to run thru an entire decade:

1. The Simpsons (1989-present) (two decades!)
2. Gunsmoke (1955-1975)
3. Law & Order 1990-2010 (two decades!)
4. Law & Order: Special Victims Unit (1999-present)
5. Lassie (1954-1971)
6. CSI (2000-2015)
7. ER (1994-2010)
8. Bonanza (1959-1973)
9. Knot's Landing (1979-1993)
10. Dallas (1978-1991)
11. My Three Sons (1960-1972)
12. Hawaii Five-O (1968-1980)
13. Beverly Hills, 90210 (1990-2000)