Question: Do "Bart to the Future" and "Lisa's Wedding" episodes share the same continuity? I only saw second one and I'd like to know if president Lisa is the same Lisa who was in love with Hugh, or Bart who has a band with Ralph the same Bart who used to demolish buildings etc? Or are they just independents predictions without connections? I'm not even asking about Future-Drama, because it'd be weird at this point, Lisa graduating in high school in 2013 and being at university in 2010.
Question: Has any episode revealed what Marge's natural haircolor is? In the flashbacks in "The Way We Weren't", she is shown as a child with blue hair, and it turns brown when another girl burns it. However, I saw another episode where she walks past her mirror, notices a brown spot of hair showing, then picks up a can and sprays blue to cover it up.
Question: So far, how many siblings (including half-siblings) do we know that Homer has? I can only think of the episode in which his brother gives him a chair, and another one in which a woman who looks like Homer is looking for her long-lost father at an airport, and is seen by Abe.