Fringe Connections

Senator Van Horn, who died in "Do Shapeshifters Dream of Electric Sheep?", was still alive in the altered timeline and talked to Broyles in "Brave New World (Part 2)".

The crane that crashed during the intro has a Massive Dynamic logo on it.

A seahorse can be seen hanging from the taxi when Walter listens to music.

The End-of-Dayers targeted the Orpheum Theater in "The Day We Died", a soft spot from when Olivia and the other Cortexiphan subjects crossed over to get Peter in "Over There (Part 1)".

William Bell's name is partially faded/scratched off of the door to the lab.

The frog glyph can be seen on a door in the pocket universe.

Bell was unwell and needed oxygen in Olivia's memories in "Momentum Deferred" which could be because he had lymphoma as Nina revealed in the alternate timeline in "Brave New World (Part 1)".

All of the people in Olivia's mind wear blacks and greys because Cortexiphan subjects have a strong desire to blend in.

A seahorse can be seen on the Bishops' refrigerator.

The creature from "Snakehead" and images of it were seen in Walter's storage vault in "The Bullet that Saved the World".

William Bell left Massive Dynamic to Walter.

The butterfly glyph can be seen as Olivia and Shapeshifter Charlie fight in the alley.

The Observers read Broyles' phone call from the impressions his sound waves made on the glass in his car in "An Enemy of Fate", like Peter did in to hear the phone call Nancy Lewis made in "The Road Not Taken".

Susan Pratt's wardrobe is full of dark colors like Olivia's and Nick Lane's.

A butterfly can be seen on a lampshade near the front of Olivia's apartment.

Windmark probed Walter's mind so forcefully in "Transilience Thought Unifier Model-11" that it caused blood vessels in Walter's eye to pop. In "Liberty" Michael resisted Windmark's mind probe, and possibly probed Windmark's mind back, causing blood vessels to pop in Windmark's eye.

Madison Square Garden in the Redverse is quarantined in amber.

The hand glyph can be seen on a door in the pocket universe.

The laser knives that the Observers nearly used to operate on Michael in "Liberty" were used by Mr. Gemini in "Brown Betty".

The episode opened in "Manhatan", seemingly a typo but actually signifying this was an alternate Manhattan.

A frog can be seen in Walter's Monty Python trip.

Peter's map of Walter's crimes in "Brown Betty" resembles the map of Pattern cases in "There's More Than One of Everything".

It is true that the Empire State Building's spire really was initially designed for airship docking as it was in the Redverse.

The apple glyph can be seen as Olivia and Shapeshifter Charlie fight in the alley.