I have found fake episodes in an episode list and I want to have something done about them.

Then finish the research to substantiate your claim.

I did some, to give you an idea.

Here's the pbs pressroom:

http://pressroom.pbs.org/PBS-Kids/ELINOR-WONDERS-WHY

and it has a link to the episodes they announced, well beyond what's been released.

The wikipedia page summarizes the too-lengthy document (but IMDb doesn't accept wikipedia as a reliable source), but might help you:

https://en.wikipedia.org/wiki/Elinor_Wonders_Why

(I only knew to go to the pbs pressroom because they are used as a source on the wikipedia page.)

Then submit contribution(s) to get the episodes corrected (at least get the bogus titles and summaries removed). If you're not familiar, here's how:

https://help.imdb.com/article/contribution/contribution-information/correcting-existing-data/GPFQGX9CFSHW5YUX?ref_=helpsrall#

Hi ryotanada -

If you have confirmed that the episode titles are fake, please report them for removal through our Contact Form (https://help.imdb.com/contact) following the path: IMDb Contributor > I need help and haven't submitted an update > Titles > Delete a title and click on "Email".

Once the titles have been reported to our support team they will then investigate further.

Cheers!