'Touch' made its official connection to the Toobworld Dynamic with this episode.
Martin Bohm was held at gunpoint on a New York City bus by a young woman who had a Hudson University shoulder bag.
Hudson University has been the go-to school of higher learning for the settings of murder, rape, and other crimes which kept the 'Law & Order' franchise chugging along for so long.
It's also been mentioned in other shows. A student in 'DeGrassi: The Next Generation' was accepted to enroll there. Dr. Cliff Huxtable of 'Cosby' went to the university's medical school. 'Without A Trace' and 'Tru Calling' also mentioned or featured Hudson U.
It has also been seen on 'Castle' and 'Blue Bloods', but those take place in an alternate TV dimension (and just maybe, the same one.)