I've never watched The Walking Dead, and I consider myself a connoisseur of first-class, prestige cable dramas. For some reason, it just doesn't appeal to me and the feedback I've got is that it's much overrated. Here are some shows I have seen and everybody else should too:
The Americans
Breaking Bad
Deadwood
Westworld
The Sopranos
The Wire
In The Flesh
Black Mirror
Mr Robot
Game of Thrones
Bojack Horseman
Outlander
Unreal
Incorporated
Master of None
Masters of Sex
Man in the High Castle
Stranger Things
The Good Wife (seasons 2 to 5)
These are the best shows on TV (I might have forgotten / missed a couple, but overall...). If you want shows that are intelligent, addictive, profound, interesting... pick a show and dive in!