[cipher0]

I was contemplating working on something similar due to my frustration with not remembering which episode I watched last of something, thanks!

[Edit] The website has "keep track of all the movies and TV series you have seen" in the list of features but I wasn't able to add a show and check off episodes as I expected when I read that.

[Ecio78]

If you have an Android phone I'll suggest you to try the app called Series Guide: https://play.google.com/store/apps/details?id=com.battlelanc... I use it exactly for that purpose. According to the page you can sync the info with https://trakt.tv/ (so maybe you're more interested in it than the app) but I found the app really handy, you finish an episode and you flag it on the app, that's it!

[nawitus]

You can add episodes if you want to.