Early in the party, Mr. Gaines sings the same song which he sang during "Mind Your Own Business", but he says he wrote it for Dwayne and Whitley.
In Whitley's farewell speech she notes that she had been associated with Hillman for SIX years. Did she (and the writers) forget about her freshman year which occurred prior to the start of the series?
At the farewell party, Kim states that she met Whitley's things before she met Whitley. However, Kim was the first to arrive in the room; this allowed her to claim "Whitley's bed" first.
(Last words spoken on the series)
Whitley: Off to a different world.
The song the cast sings towards the end of the episode is End Of The Road by Boyz II Men.
Episodes 136 and 137 aired as an hour-long series finale on a Saturday night. Given the fact that the two episodes had different writers and directors, the producers probably did not intend for them to be shown together.
Episode Title: When One Door Closes...
The title refers to the popular saying "When one door closes, another one opens".