Syfy acquired the rights to all 31 episodes of Terminator: The Sarah Connor Chronicles but is pulling the plug on the 4-5 hour blocks of them after only three weeks (including tonight's episodes) and will replace them with blocks of Star Trek: The Next Generation reruns beginning next Thursday.
Perhaps Syfy is trying to not be out sci-fied by BBC America which also airs Star Trek: TNG reruns and also just acquired the rights to air Syfy "hit" (from the SciFi days) Battlestar Galactica. Not to mention BBC America just announced a co-production deal on the UK version of Being Human, and of course BBCA will be airing Doctor Who's sixth season beginning with the premiere this Saturday.
Syfy also announced (via Twitter) that it was moving Sanctuary from Fridays to Mondays beginning Monday, April 25.
Lena Headey fans can still catch her on HBO's Game of Thrones...