The Supergirl episode, How Does She Do It? that was postponed last week by CBS will air tomorrow night instead. In response to the terrorist attacks in Paris, the network decided the subject matter of Supergirl running around the city finding bombs was in appropriate to air only days after. They moved up the Thanksgiving themed episode with guest star Helen Slater instead. They didn't say at the time when the planned on moving the original episode to… but with serialized dramas it is difficult to move it too far out of the rotation or it would effect the overall story arc. So in the end, the episode only got bumped one week.
Supergirl airs Mondays at 8 PM on CBS.