The old film the mobsters are watching on TV is 'It's a Gift', with W.C. Fields.
When Kojak asks Polucci, "Do you think you can con OCB into giving us some more men?" he's referring to the Organized Crime Bureau, a specialist branch of the New York City Police Department.
The old film Don Scalesi (Michael Constantine)'s watching on TV is It's a Gift (1934), featuring W.C. Fields.
Around the 22 minute mark, Kojak is standing in front of a pharmacy and written on a poster in the window is a poster for Zorba the Greek (1964), and Telly Savalas was very proud of his Greek heritage.