The Prisoner

The Twilight Zone

Star Trek et al.

Homicide : Life On The Street.

The Avengers [Steed and Peel]

Those are the ones I feel are objectively unsurpassed.

Here, in no particular order, are some that are not as famous but worth a view.

The Venture Brothers

Lost In Space [2018]

School Spirits

Branded [used to watch it at 5 am while preparing for work]