CBS+

CBS+ (formerly known as TNN) is an American television syndication service, owned by Illustrious' ViacomCBS unit, and operated by its CBS Television Stations division, The network is distributed through the syndication structure of CBS Television Distribution. The network began its operations on December 17th for CBS owned Independent stations, (such as KCAL, WLNY, and KTXA) and December 25, 2020 for a nationwide audience - with an initial affiliate lineup covering about 90% of the country, via the stations of Sinclair, Nexstar and Gray, among other smaller station groups.

Positioned as a complementary service to CBS (and as such, a direct competitor to Fox's MyNetworkTV), TNN primarily airs reruns of films and television shows catered to an 18-34 demographic, with many of its programming being pooled from the content libraries of ViacomCBS' Filmed Entertainment Group, including CBS Studios and Paramount Pictures, as well as programming from ViacomCBS' networks, such as MTV, BET, AMC, Discovery, Comedy Central, and Nickelodeon. The network also features national regular news and sports updates from CBS News and CBS Sports, and local news and sports updates from CBS Sportsnet and CBSN Local, while acting as an overflow network for CBS, providing continuing coverage of CBS's network specials, sports coverage, and news events, along with preemptive programming, and limited local programming, from CBSN Local, CBS Sportsnet, and the respective local CBS O&O stations.

On April 28th, 2021, after nearly 5 months under the Superstation brand, CBS announced that the service would be rebranded as TNN, a partial revival of the former brand used by ViacomCBS owned sister network Paramount Network, and a full revival of the latter meaning of the initialism of TNN, "The National Network". The rebrand will take place on May 1st, and TNN will also receive a new tagline: "TV Like You Mean It". Superstation officially rebranded as TNN on May 1st, 2021.

Affiliates
TNN's initial charter stations were CBS owned independent stations, and other independent stations kept by Illustrious Broadcasting's divestitures of non CBS/CW/Independent + Illustrious owned multicast network affiliated stations. Followiitst's purchase of ViacomCBS, Illustrious would later merge its television station broadcasting operations into CBS Television Stations, while moving the newly kept CW stations and CBS's existing CW stations to a new joint venture involving The CW itself, following negotiations with network co-owner WarnerMedia, under which both companies would control the network and its associated properties.

Illustrious had originally planned to keep only their CBS and The CW stations, but later expanded to Independent and CBS/Illustrious owned affiliates of the company's multicast networks, with the reasons for the retaining of those stations being CBS TVS's already existing ownership of independent and multicast affiliates, such as KCAL, WLNY, and KTXA. Per the divestitures, CBS would gain WPCH, WAXN, KONG, WRDQ, and WMOR, among others.

The service's affiliates are usually independent stations, however, prior to the service's December 17th and 25th launch, on November 11th, 2020, CBS Television Stations inked a deal with Ion Media in which the vast majority of Ion's stations would switch their affiliations to the Superstation, in return, in markets where CBS does not own a independent station, but does own a O&O affiliate, that station would provide Ion's station with news, sports, and local programming. while non CBS owned stations were heavily encouraged to form a news share agreement, or, should one already exist, another news share agreement with the local TNN affiliate in their market, in order to fill the service's schedule, in which local programming would be given air time. An eventual deal with the three largest television stations ownership groups, Sinclair, Nexstar, and Gray Television would be made two days after the Ion deal, on November 13th, 2020.

Throughout early 2021, CBS Television Stations purchased several independent television stations around the country in efforts to expand TNN's reach across the country, with among the biggest of the purchases being 12 stations on April 21st, 2021, growing the O&O count to 30. CBS also swapped KCNS for KOFY-TV a similar deal with the Eclipse Group.

List of TNN O&O affiliates
TNN has 30 full time network affiliates in 21 states.

TNN Radio
On November 12th, 2020, the newly reformed CBS Radio (formed by the rebranding of Illustrious Broadcasting radio division) announced it would launch an associated radio service, Superstation Radio, which would be distributed by company owned Westwood One. Similar to the Superstation itself, Superstation Radio would attempt to emulate the television format onto radio, by offering a mix of songs, ranging from classics to recent hits, and tie in programming, such as audio simulcasts and broadcasts of local programs, along with local and national news and sports updates. The service's national feed was made available on CBS Radio's satellite radio service, SiriusXM, beginning in January 2021. It too would relaunch as under the TNN brand on May 1st, although it is unclear if CBS Radio will opt to keep it around.