Classic TV Shows:
* Gunsmoke (1955-1975) - 20 seasons
* I Love Lucy (1951-1957) - 6 seasons
* The Andy Griffith Show (1960-1968) - 8 seasons
* The Twilight Zone (1959-1964) - 5 seasons (original run)
* The Dick Van Dyke Show (1961-1966) - 5 seasons
Modern TV Shows:
* Grey's Anatomy (2005-present) - 19 seasons
* The Simpsons (1989-present) - 35 seasons
* Law & Order: Special Victims Unit (1999-present) - 24 seasons
* NCIS (2003-present) - 20 seasons
* Supernatural (2005-2020) - 15 seasons
* The Big Bang Theory (2007-2019) - 12 seasons
* Modern Family (2009-2020) - 11 seasons
* Friends (1994-2004) - 10 seasons
* Game of Thrones (2011-2019) - 8 seasons
* Breaking Bad (2008-2013) - 5 seasons
* Lost (2004-2010) - 6 seasons
International Shows:
* Doctor Who (1963-present) - 40 seasons (with various reboots)
* The Crown (2016-present) - 5 seasons
* Peaky Blinders (2013-2022) - 6 seasons
This is just a small selection of the many shows that have lasted five or more seasons. To find more, you can use online databases like IMDb or TV.com, or search for lists of "longest-running TV shows".
It's worth noting that the popularity and longevity of a show can be influenced by various factors, including its genre, cast, writing, and production quality.