The murders of Nicole Brown and Ron Goldman didn't take place inside Nicole's house.

Also,

Nicole didn't keep the name of Simpson after her divorce so she wouldn't have has the name Simpson on her mailbox.

Madonna

When Chris sees Anna, he fantasizes about serenading her with Madonna's 1985 song 'Crazy For You'. It is included in the film and soundtrack to the 1985 motion picture 'Vision Quest'.

Stewie: "God, this is a more disturbing sight than Tom Hanks and E.T. in Philadelphia"

E.T. the Extra Terrestrial attempts to cure Tom Hanks' character Andrew Beckett in an alternate version of 1993's 'Philadelphia'

Mort: "Ahhh... Krystallnacht!"

Krystallnacht aka “Night of Broken Glass” took place in Nazi Germany November 7, 1938, it saw the destruction of more than a thousand Synagogues, the ransacking of tens of thousands of homes, and more than 30,000 Jewish men taken away to concentration camps.

Wilhelm Scream

When Peter's pirate crew blasts the telephone pole the famous Wilhelm Scream is used as the man falls

Peter: "I've screwed up more than Disney did when they cast Michael J Fox in that Zorro remake"

Seeing the illegible scrawl on the wall is a reference to the fact Michael J Fox suffers from Parkinson's Disease and obviously couldn't make Zorro's trademark 'Z'

Lois: "You're not the first person whose life he screwed up"

Peter was (apparently) responsible for the 1994 murders of Nicole Brown and Ron Goldman

Men At Work

Peter provides backgorund music for Chris' date by attempting to sing the 1981 Men At Work song 'Down Under'