Creating a new title for a prominent show where I can't add the three pilot episodes?

Hello everyone!

Back in 2015 - 2018 I helped develop, produce, and make three original webisodes for a series that is now listed on IMDb here (https://www.imdb.com/title/tt13742850/). 

I would LOVE to be credited with the three original webisodes that I helped make as a budding, independent filmmaker (You can find all three here, my name prominent in the end credits: https://www.youtube.com/watch?v=jPJwtAXBqrk | https://www.youtube.com/watch?v=Ns6_Y3AqROs | https://www.youtube.com/watch?v=JjDxJxeOGb8 )

THE PROBLEM: Since the series took off on actual TV and not just YouTube in 2019, IMDb's official listing for the now officially broadcast series starts during 2019 and the episode listings already begin at 1. So, I can't update the official IMDb for the series with a new release date, or episodes that pre-date number 1 without being told no by IMDb.

THE QUESTION: Do I just add a new title for my three episodes that becomes "Nazranaa Diaries (2015)"? I know I wouldn't add the "2015" to the title myself. I just figure, since I seem to be unable to add these pilot episodes to the official IMDb, the only way is for me to make another version of the show that indicates it was still in its infancy.

I'm not sure if I'm overlooking something, and don't want to have to add a similar title to the site if I don't have to, so I figured I'd come here and ask for help!

Thank you all ahead of time!

- Brian