Sandy Duncan appears in a Talk Show hosted by ALF, where she mentions the series.
Parker says, "As the Hogan family survived the senseless loss of Valerie Harper, normalcy has been restored to Santo Domingo."
Fran mentions Sandy Duncan being Valerie Harper.
Edie McClurg's character, Mrs. Pool, is named after the character she played in the 1980s series Valerie (aka The Hogan Family).
Hogan's Family mentioned by Chuck
mentioned by Brad
points out Jason Bateman from this show
Stars prematurely leaving shows: Valerie Harper - Valerie