Please help if I should use "when" or "what" & "for" or "of"

Hi, I would appreciate if someone can help me determine which one of the following sentences is correct:

(differences in sentences are underlined)

- What is the premiere date of the show?

- What is the premiere date for the show?

- When is the premiere date of the show?

- When is the premiere date for the show?

Thank you for any help :-)