 If you liked
Heppoko Jikken Animation Excel♥Saga
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 ...then you might like
Heybot!
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Both excel saga and heybot have random and unexpected humor, they're essentially parodic in nature, sharing the same formula of having episodes focused on satirizing different genres of animation.
Both series are self-aware and rely a lot on the use of meta-narratives and breaking of the 4th wall, heybot is especially creative in how it handles its merchandising inside the anime.
Both of them are also impressively visually creative despite a severe lack of budget.