Optimum provides small and mid-sized businesses with Internet, telephone, television, mobile, WiFi, and advertising services.

Modernizations and expansions of their services included "a fiber optic network" and more channels, with an expanded set of offerings.

In what was termed "digital service" Interactive Optimum was not first, but was early in steering the introduction of video-on-demand, alternate camera views for sporting events, and VCR-like rewind and replay.

[15] Similarly, regarding Optimum's branding and HBO Now, writes the New York Times, "Cablevision’s Internet subscribers can order the service on the company’s website, Optimum.net .., or by calling.

[22] Advertising Age reported that "several high-profile ventures that had their plug pulled for troublesome economic or technological reasons".

Cablevision was combined with Suddenlink Communications to create Altice USA, the fourth largest operator in the United States.

[25] On March 1, 2021, Altice USA announced that it would acquire Morris Broadband in North Carolina for $310 million which was later closed on April 6, 2021.