The Flash has become the longest-running series in the Arrowverse

Although it is not 100% accurate, generally speaking, the more episodes a TV series has, the more interested the audience is in it. For example, the long-running TV series "NCIS" will usher in its 20th season this fall. Some TV series are a bit short, but the length has been determined at the beginning of planning, and they want to tell a short story. Among them, there is an alternative work, which is "The Flash".

Because The Flash is a legacy of the now-broken Arrowverse. From Arrow, series like The Flash, Legends of Tomorrow, and Supergirl were spawned. Arrow itself lasted for 8 seasons and 170 episodes, with the final season being cut short after the crossover series Crisis on Infinite Earths ended.

The Flash has just completed its eighth season, surpassing Arrow to become the longest-running work in the Arrowverse.

Moreover, considering that the production time of the series has been extended due to the epidemic, the actual length of time spanning these eight seasons is even longer.

Anyway, the eighth season of "The Flash" has ended, with a total of 171 episodes, and the ninth season has been confirmed to be produced, so it seems that the show will continue.