In 2020 to 2021, “NCIS” pulled in the most ratings on CBS with 12.73 million viewers.

The crime drama also received multiple nominations for theEmmysand People’s Choice Awards.

In aReddit thread, people attributed the show’s staying power to its realistic portrayal of character growth.

Sean Murray smiling

Tony is so different in later seasons compared to him in the beginning."

“I think people fell in love with the show from the early years,” she explained.

This gave fans time to adjust and come to love new characters.

The cast of NCIS smiling on the red carpet

She said, “The changes didn’t come all together.

Some characters started leaving and then [new ones came in].

People love the character of Gibbs, and so I think they like the characters.

Cote De Pablo smiling

I think they like the dynamic.”