Character: Lily Aldrin
Appears in: How I Met Your Mother
Commonly Interpreted as: Straight
But Really: Lily has two long-term relationships with men in the show: Scooter and Marshall Eriksen (she may have been in other relationships before Scooter but this is not discussed in the show). She is married to Marshall.
However, before marrying Marshall, she has doubts about getting married, lamenting to Robin that she never had a “lesbian experience”. As the seasons continue, Lily’s sexual attraction towards Robin becomes more and more pronounced. After giving birth to her first child, Marshall and Lily are not having sex and Lily discusses very explicit fantasies she has been having about Robin, as well as threesomes with Robin and another man. In another season, when Robin is attempting to make Barney jealous by dancing inappropriately with another woman, Lily is upset that Robin doesn’t chose her to dance with.
In fact, Lily’s interest in women is expressed so often that her Wikipedia bio has a large section on moments when it happens in the show!
So, Lily is definitely bi/pan/queer, but her sexuality is often used as a throwaway joke.
(The actress who played Lily, Alyson Hannigan, also played canonically gay character Willow on Buffy: The Vampire Slayer.)
Thanks to corenna for this submission.
Q:A pagan astrophysics major told me another answer: As it turns out, iron is life to blood, but is death to stars. Elements lighter than iron can release energy with their fusion, but once a star proceeds up the fusion chain to the point of producing iron, it begins gaining deadweight and cooling/losing energy, because iron eats energy in its fusion reaction rather than releasing it. Eventually a star will "choke" on the iron and collapse. Iron comes from the death of a star.
Holy shit it’s early. Like, fucking dark out early.