Fusion TV was an American pay channel owned by Fusion Media Group, a multi-platform media company subsidiary of Univision Communications, which relied in part on the resources of its parent company's news division, Noticias Univision. In addition to conventional television distribution, Fusion was streamed online and on mobile platforms to subscribers of participating cable and satellite providers.

Launched on October 28, 2013, the network's content featured news, lifestyle, pop culture, satire and entertainment aimed at English-speaking millennials, including those of a Hispanic background; the channel was Univision's first major push into English-language programming. Fusion was based in "NewsPort", an expansion of the Univision campus (formerly a freight warehouse) at 8551 NW 30th Terrace in the Miami suburb of Doral, Florida, which was shared with Noticias Univision and Univision flagship station WLTV-DT; it maintained additional studios in Los Angeles and bureaus in Mexico City, New York City, and Washington, D.C. The channel ceased operations on December 31, 2021.

Apart from being Univision Communications' first attempt in the world of English-language cable networks before El Rey Network, Fusion was ABC News' third attempt in the world of 24-hour cable news. In 1982, ABC News and Group W (then a division of Westinghouse) first launched a 24-hour news channel called Satellite News Channel. But due to low clearance from cable systems, both of them sold the channel after just over a year on the air to CNN (a subsidiary of Turner Broadcasting System, which has been under Time Warner's control since 1996), which used it to augment coverage of CNN's companion network, CNN Headline News. In the mid-1990s, consistent rumors of the launch of an ABC cable news channel were persistent with the launch of MSNBC and Fox News Channel, but never came to confirmed fruition, and wound down with the network's purchase by The Walt Disney Company, which instead put their efforts into building ESPN's sports news division.

Twenty-two years later, in 2004, ABC News launched ABC News Now as an early digital multicast network, which was also available through video portals such as Yahoo's. It was a lower-profile effort established for ABC News's digital side, and never expected to go beyond that platform and onto regular cable as a 24-hour news channel.

In December 2010, the newly appointed president of Noticias Univision, Isaac Lee, announced plans to start a 24-hour English language cable news channel aimed at Latino Americans. Univision Communications would later on, in late 2011, enter into discussions with Walt Disney Company-owned ABC News about entering into a joint venture to develop the channel. The discussions bore fruit with the companies' formal announcement of the channel on May 8, 2012, initially projecting a debut during the first half of 2013 (the channel would be given its name, Fusion, in February 2013). On October 4, 2013, the company announced it had named Isaac Lee as Chief Executive Officer to replace interim CEO Beau Ferrari.

Fusion's formal launch date and its initial programming schedule was announced on August 1, 2013. The channel formally launched on October 28, 2013, buoyed earlier in the day by a simulcast of ABC's Good Morning America and Univision's ¡Despierta América! designed to promote Fusion's launch and programming. After leading off with a three-minute musical number at 6:57 p.m. Eastern Time on October 28, 2013, Fusion began regular programming with the debut of America with Jorge Ramos.

Fusion's target audience consisted mainly of millennials (roughly the age bracket of adults 18–34), a group generally regarded as digitally fluent and normally favors social media and internet sources to add news and base opinions, usually eschewing traditional broadcast and print sources. To that end, Fusion geared its programming less towards the constant coverage of breaking news, instead emphasizing context and analysis on news and issues, along with interviews, documentaries, and long-form reports on current events, lifestyle, and pop culture. Fusion also employed an on-air blending of serious topics and discussions that is, more often than not, laced with irreverence and humor (a "common language" among millennials according to former host Alicia Menendez) that aims to reduce the air of pretense and seriousness with which other news outlets treat current topics and issues. The "fusion" of seriousness and lightheartedness has been evident in Fusion's primetime lineup: America with Jorge Ramos, in its first week, took a more conventional approach, featuring interviews with President Barack Obama and U.S. Senator Ted Cruz, while other early Fusion shows Alicia Menendez Tonight featured more personal and less serious topics, and programs including No, You Shut Up ventured towards irreverence and even satire.

Fusion was originally conceived to primarily attract a younger audience of an English-speaking Hispanic and Latino American background; about one-fifth of millennials are classified as being of Latino descent and have generally been well-acclimated with English language society in the United States, either as emigrants or as U.S. nationals by birth. After receiving some backlash during development over concerns that too much of a focus was placed on ethnicity, Fusion would broaden its scope during its development, aiming to "engage and champion a young, diverse and inclusive America," regardless of cultural or language background. Isaac Lee, who served as Fusion's CEO in addition to President of News for Univision, explained that Hispanic millennials see themselves as part of the broad American culture and that "they want to be part of the same room and part of the same conversation" as non-Hispanics.