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Social TV service TVtag, which was previously known as GetGlue, is shutting down at the end of the year. TVtag announced the shutdown in an email to users Friday afternoon, which stated that users had just a few days left to manually request the export of their data by emailing the TVtag team.

The email reads, in part:

“Later this month, we will be shutting down tvtag and its supporting apps in order to refocus our efforts on other initiatives. (…) We’re grateful for all your support over the last four years. You’ve helped us build an incredible community of fellow TV fans. We’ll miss it dearly.”

TVtag’s website and Twitter account have yet to be updated to acknowledge the shutdown.

TVTag launched earlier this year as a successor to GetGlue, a pioneering social TV service that let users check in to TV shows and earn stickers for doing so. GetGlue experimented with a few different social TV models throughout the years, which included a pure Foursquare-like check-in experience for all kinds of media as well as a new type of TV guide, but it never gained traction beyond a core audience of check-in enthusiasts.

The company went through a bit of a tumultuous time when it first announced, then canceled an acquisition by publicly traded Viggle, and eventually got sold to Utah-based i.TV in late 2013.

Much of the original GetGlue team, including founder Alex Iskold, had long left the company, but it’s unclear whether the shutdown is resulting in further layoffs. I asked the company for comment, but have yet to hear back. i.TV CEO Brad Pelo told me earlier this year that TVtag employed more than 50 curators to distill key moments from live TV feeds, and make them instantly shareable through TVtag’s app.

That approach however didn’t go over well with GetGlue’s original users, many of which didn’t seem too surprised by the decision to shut down Friday. As one user put it on Twitter:

TvTag acquired GetGlue, made it useless, then now they are shutting it down. So annoying. — SuperSanusi (@supersanusi) December 19, 2014