The “30 Rock” reunion gets the job done.

For viewers of all ages, it’s a gripping and emotionally rewarding watch-especially now that it’s all available to binge.

If you’re looking for allegorical, intriguing science fiction, this isn’t it. If you’re OK with rapid-fire, light-hearted dialogue with an occasional dig at politics and culture, this “Doctor Who” is your cup of tea.

What makes it uniquely entertaining are Mr. Rock’s and co-creator Ali LeRoi’s humorous insights into the terrors of adolescence and their tart observations about harsh realities of the wider world.

Harry IV is an intelligent, visually seductive and mostly very satisfying fantasy epic of the first order.