Fringe to NCIS

In the pilot of Person of Interest John Reese's suspect Diane Hanson has emails numerous characters from Fringe

In the pilot of POI numbers 4-8-15-16-23-42 appear as the time stamp of a surveillance camera, the same numbers won Hurley the lottery on Lost

You can see advertisments for Oceanic Airlines in a LAX terminal, which is the airline of the plane that crashed on Lost

JAG and LAX reference the fictional airline Oceanic

NCIS was a spinoff of JAG