Graceless season 2 finale. Following the shocker that ended the previous episode The Flood, there seems to be a plausible explanation of what’s going on only for another shocker to emerge at the end. Typically this season ends on a cliffhanger.
My Sci-Fi/Fantasy Security Council - Whoniverse, Blake's 7, Star Trek, Lost In Space, Babylon 5verse, Stargate, Buffyverse
My Doctor Who season count: 1-26 original series, 27-30 Paul McGann Big Finish (pre-2005), 31- current series.