The longest-running TV series ever

'Lassie' - The series, which ran from 1954 to 1972 for a staggering 588 episodes, revolved around Lassie.

'Last of The Summer Wine' - The British BBC sitcom ran for 31 seasons, airing 295 episodes from 1973 to 2010.

'Knots Landing' - The 'Dallas' spin-off, which aired in 1979, became a popular soap opera in its own right.

'Dallas' - This American soap opera ran for 357 episodes, all the way from 1978 through to 1991.

'Curb Your Enthusiasm' - Larry David's beloved improv sitcom 'Curb Your Enthusiasm' was renewed for a 12th season at HBO.

'Modern Family' - One of the most iconic comedies in television history lasted 11 seasons.

'Doctor Who' - The series was first released in 1963, and has been on the air for 38 seasons.

'Judge Judy' - Judy Sheindlin, one of daytime TV's biggest and highest-paid stars, ended her popular courtroom series 'Judge Judy' in 2021.

'Supernatural' - 'Supernatural' ended its impressive 15-season run in 2020.

'NCIS' - Starring Mark Harmon, the series aired for the first time in 2003, and has more than 400 episodes.

'Law & Order' - Having already run for 20 consecutive seasons, the show follows police investigations and the fight for justice in the city of New York.

'Grey's Anatomy' - The series, masterminded by Shonda Rhimes, has already won the record for being the longest-running drama on prime time TV.

'ER' - The 331-episode show was responsible for the increasing popularity of medical TV series and has a notable 15 seasons.

'Criminal Minds' - The 2005 crime series about the FBI's Behavioral Analysis Unit announced its end after its 15th season.