“Gunsmoke” and “Lassie!”
are the only shows ahead of “NCIS” on the list of long-running CBS series (viaOutsider).
“Gunsmoke” racked up 20 seasons, while “Lassie!”

ended at Season 19.
However, the show is losing a bit of steam.
With his absence, many fans fear the show will not live on.

However, it was just a ploy to go on an undercover assignment.
Her message to her fans read, “Hangin this hat and jacket up.
What a great ride it’s been.
This cast, this crew, are top notch.
This business is finicky and weird and consistency is a rarity.
A moment in time I surely won’t forget.”
So, who is going to replace her on the show?
Her name is Agent Jessica Knight, played by actress Katrina Law (viaDistractify).