Character mistake: When Uncle Ned calls Alcoholics Anonymous, he only dials 6 digits on the phone (instead of 7), but still the call successfully goes through.
Character mistake: When Alex mentions to Mallory that he's had sex before, he tells her he was 17 and that it was leap year. Not correct, this event occurred in 1982 (during one of the first episodes when Alex was 17), which was not a leap year.
Chosen answer: Steven Keaton (Michael Gross) did not grow the beard for an episode. He grew it between season 1 and season 2 as a character he was playing in an Off-Broadway play. When the show began taping for season 2, it was decided to have him keep it. It never was a plot point on the show.
jairodrigue