When Harold is filling out the medical forms and gets to the question about Cancer, he says 'No,' and writes no on the form. The shot then switches to looking at the form, the line he filled out is now blank, and he writes no again.
The sweater Hannah is wearing at the beginning is the same one Amy tried to loan Hannah for her first date with Topher last season.
Ephram states that he voted for Kerry. This is false. John Kerry ran for president in 2004 when Ephram was only 16 and too young to vote.
Earlier in the series Bright told potential roommates they'd have to share a bathroom. But when Bright and Hannah both get food poisoning at the same time, they each run to the toilet in opposite directions.
When Ephram offers his hair gel to Reid, that must mean his hair is STYLED to look unkempt and yucky.