CAMBRIDGE, Mass.--(BUSINESS WIRE)--Comcast, the Healey-Driscoll administration and the Massachusetts Technology Collaborative's Massachusetts Broadband Institute (MBI) today announced significant progress in broadband infrastructure upgrades to public and affordable housing units across the Commonwealth. These upgrades, part of the first round of funding in the Residential Retrofit Program, provide access to high-speed, symmetrical Internet and robust connectivity for residents. State officials joined Comca ...