J.B. Smoove Is On Larry David to Do 'Curb Your Enthusiasm' Again

J.B. Smoove isn't giving up hope, and neither should you ... he's putting the pressure on Larry David to bring back "Curb Your Enthusiasm" for one more season.

J.B. was on "TMZ Live" talking about his new movie, "Barbershop: The Next Cut" ... when we started talking about his other gigs on TV -- he's got a lot of 'em -- and it's clear which one he wants the most.

Larry's on record saying it just isn't gonna happen, but check out this clip ... J.B. is still pushing to get Leon Black and LD back together.

Translation: He's saying there's a chance!