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Seasons & Episodes
E1
21st Century Boys
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20th Century Boys — streaming FAQ
Which OTT platform streams 20th Century Boys?
20th Century Boys isn't streaming anywhere in Australia yet.
Is 20th Century Boys on Netflix?
No, 20th Century Boys is not on Netflix in Australia as of November 2026.
Is 20th Century Boys on Amazon Prime Video?
No, 20th Century Boys isn't on Amazon Prime Video in Australia right now.
Where can I watch 20th Century Boys for free?
20th Century Boys isn't streaming in Australia yet, so there's no way to watch it free at the moment.
How many seasons are in 20th Century Boys?
20th Century Boys has 23 seasons in total (23 episodes). The series concluded in 2007.
Are all episodes of 20th Century Boys out yet?
Yes — all 23 episodes across 23 seasons of 20th Century Boys are out and available to stream.
Is there a Season 24 of 20th Century Boys?
No — 20th Century Boys ended after 23 seasons, so there is no Season 24.