Has The Twilight Zone's Theme Song Always Been The Same?

Throughout the years, The Twilight Zone has seen its theme song evolve and change, along with each new iteration of the show. But what
Throughout the years, The Twilight Zone has seen its theme song evolve and change, along with each new iteration of the show. But what's the backstory on this creepy ear worm?

The Twilight Zone Once Upon a Time (TV Episode 1961) - IMDb

What Does It Take To Write A Hit TV Theme Song? : NPR

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Twilight Zone Opening Credits and Theme Song

10 Things You Might Not Know about The Twilight Zone - Listverse

10 Things You Might Not Know about The Twilight Zone - Listverse

How a War-Weary Vet Created 'The Twilight Zone

Twilight Zone' narrator Jordan Peele has 'very big shoes to fill

The Untold Truth Of The Twilight Zone

The Twilight Zone (1959 TV series) - Wikipedia

In the TV show The Twilight Zone, exactly what is the twilight zone (in normal terms)? - Quora

The Twilight Zone's 'Nightmare at 20,000 Feet' Then and Now

The Twilight Zone Episode Where Is Everybody Hit A Few Bumps Behind The Scenes

The Twilight Zone- Both Original 1959 Intros