Ralph J. Roberts, Comcast founder, is dead at 95
Ralph Roberts Dead: Comcast Founder Dies at 95 – The Hollywood Reporter
Ralph J. Roberts Syndeo Institute At The Cable Center
Philadelphia Inquirer: A cable kingdom 40 years in the making
Ralph J. Roberts
Comcast Founder Ralph J. Roberts Dead At 95
Comcast founder Ralph Roberts, 95, dies
Comcast founder Ralph Roberts, 95, dies
Ralph Roberts, Comcast founder and U.S. media magnate, dead at 95