The scene in which Trina gets sick with tuberculosis. Is a reference to The Brady Bunch Is There A Doctor In the House? Where The kids get sick with the measles.
The scene in which Tori faints from exhaustion during the play. Is a reference to The Waltons The Gift, where Seth Turner collapses from exhaustion while sawing a branch from the tree. And like Seth, Robbie gets examined by a doctor. But unlike Seth, Robbie doesn't get leukemia and needs surgery.