Jack Soo's last line in the series is "I have nothing to add."
Final appearance of Jack Soo on the show before his death.
Aired two months and two days before Jack Soo died.
Copied from Jack's bio page: His last words to Hal Linden as he was being wheeled into the operating room before his death were "It must have been the coffee." This was a reference to the running gag of his character Nick Yemana from Barney Miller (1975) having the reputation for making horrible coffee.
(This is evidence at how close the cast of Barney Miller were. This show was not canceled by the Networks. It's creator took it off the air while it was still at the top of it's game.)
Barney's badge number is 233451.