S ome of the longest-running TV shows in history have been reality shows. Whether structured or unstructured, in competition format or not, it seems that there's something near-inexhaustible about ...

but there are an impressive number of popular shows that actually stuck around for the long haul. Here now is a list of shows that incredibly ran for more than 250 episodes.

One of the world's best known, longest-running and most beloved ... won seven Tony Awards, and ran for 18 years. Both original cast recordings won Grammy Awards for Best Cast Album.