The Cablevision founder helped usher in a new era for television. He also acquired sports and entertainment properties including MSG and the New York Knicks.

Per CNN, Dolan was also a founder and chairman emeritus of The Lustgarten Foundation, which conducts pancreatic cancer research. According to Forbes, Dolan and his family have a net worth of 5.4 billion at the time of his death.

"Sometimes A Great Notion" was the first movie ever shown on HBO, then known as Home Box Office Inc., the premium cable service that would change television forever. It was the brainchild of Charles Dolan.