dave on Nostr: It is difficult to give a precise percentage of the US media market that each company ...

It is difficult to give a precise percentage of the US media market that each company represents since media representation and influence can vary widely depending on the type of media (e.g. broadcast, cable, digital), the demographics of the audience, the geographic region, and other factors. However, here is some information that may help provide a rough estimate of each company's reach and influence:

- Comcast Corporation owns NBCUniversal, which includes NBC News, MSNBC, CNBC, Telemundo, and Universal Pictures, among other media assets. Comcast is also the largest cable television provider in the US, with over 21 million subscribers.
- AT&T, which acquired Time Warner (now WarnerMedia), owns a significant portion of the US media market through its ownership of CNN, HBO, TBS, TNT, Cartoon Network, and Warner Bros., among others.
- 21st Century Fox, which was acquired by Disney, owns Fox Broadcasting Company, Fox News, Fox Business, National Geographic Partners, and several other media assets.
- CBS Corporation owns CBS News, CBS Television Network, The CW, CBS Sports, and other media properties.
- ViacomCBS owns CBS, Showtime, MTV, BET, Nickelodeon, and other media assets.
- Walt Disney Company owns ABC News, ESPN, Disney Channel, Disney XD, and other media properties.
- NBCUniversal, owned by Comcast Corporation, includes NBC News, MSNBC, CNBC, Telemundo and numerous other media assets.
- Sony Pictures Entertainment owns Columbia Pictures, Screen Gems, and TriStar Pictures, among others.
- News Corp owns HarperCollins Publishers, The Wall Street Journal, and other media properties.

Again, this list is non-exhaustive, and the media landscape in the US is constantly changing. It is important to approach discussions of media concentration with a critical and informed perspective while promoting media literacy and freedom of expression.