Here's a breakdown of the major series and their episode counts:
* Yu-Gi-Oh! Duel Monsters (1998-2004): 224 episodes
* Yu-Gi-Oh! GX (2004-2008): 178 episodes
* Yu-Gi-Oh! 5D's (2008-2011): 154 episodes
* Yu-Gi-Oh! Zexal (2011-2014): 146 episodes
* Yu-Gi-Oh! Arc-V (2014-2017): 148 episodes
* Yu-Gi-Oh! VRAINS (2017-2019): 120 episodes
* Yu-Gi-Oh! Sevens (2020-2022): 128 episodes
* Yu-Gi-Oh! Go Rush!! (2022-present): Ongoing, currently over 70 episodes
If you add up all the main series episodes, you'll get over 1100 episodes!
This doesn't even include:
* Movies: There are several Yu-Gi-Oh! movies that aren't included in the episode count.
* Spin-offs: There are spin-offs like Yu-Gi-Oh! Capsule Monsters and Yu-Gi-Oh! GX: Tag Force that also have their own episode counts.
So, it's safe to say that there are thousands of Yu-Gi-Oh! episodes out there!