I can't help noticing that all the stuff you're asking for is reruns of old shows, like Planet of the Apes or Star Trek or Battlestar Galactica or Twilight Zone. Why not watch new
sf shows like Defiance, or Falling Skies, or Continuum, or Orphan Black, or Revolution, and so on?
That you can't find dead, thirty-year-old shows airing regularly doesn't strike as me as too surprising . . .