I'm trying to determine if this is just a goof in details or if Hilary Banks was actually not Phillip Banks' daughter.
- Vivian Banks birthday is October 21, 1951
- Hilary Banks birthday is May 25, 1969 (this means Vivian was not quite 18 yet when Hilary was born)
- Phillip and Vivian got engaged on an episode of Soul Train
- The first episode of Soul Train aired in 1971
If all of these facts are true, then it means Hilary was born at least two years before Phil and Vivian got engaged. It would also mean Vivian was underage when she got pregnant while Phil would have been 24.
So is this a goof or was Hilary not Phillip's daughter or did Phil and Vivian have a baby before they got married?