Felicity, Sydney or Jack and Kate on the big screen. Could it ever possibly happen?

Creator J.J. Abrams was on hand at the NBC TCA Press Tour Sunday to promote his new "spiritual" thriller Believe (which looks jaw-droppingly good, by the way), and the TV mastermind gave the lowdown on big-screen possibilities for three of his fan-favorite TV series.

Could these shows ever come back as a movie? Here's what J.J. said: