If you tune into IFC on April 17, don't adjust your set because you think you're seeing double. The network is simply running a marathon of the first two seasons of "Orphan Black" in their entirety.

The BBC America sci-fi series, which is gearing up for its Season 3 premiere, follows Sarah Manning (Tatiana Maslany), who discovers she's one of several clones after she witnesses a woman who looks just like her committing suicide. In Season 3, Sarah and her fellow clones in Project Leda realize they are not the only ones out there.

IFC's "Orphan Black" marathon kicks off at midnight on April 17. Season 3 premiere will air on AMC, BBC America, SundanceTV and WEtv in addition to IFC. Additionally, BBC America has released several trailers and a full scene from the premiere.

"Orphan Black" returns Saturday, April 18, at 9 p.m. ET/PT .