Editing TX Network (section)

==Overview==
[[File:TXN ID map (en).png|thumb|right|239x239px|[[Virtual channel|LCN]] assignments of TXN affiliates]]
It is named "TXN" because of the call sign of TV Tokyo, its key station, JO'''TX'''-DTV. The official name of the network is "TXN Network", and its abbreviation is "TXNN", with the "N" part intentionally duplicated with "Network", or it could also be News and Nationwide due to ambiguous meanings. There is no official explanation about the meaning. For that reason, it is sometimes called by various aliases such as TX Network, TV Tokyo Network, TV Tokyo keiretsu, and TXN keiretsu.

Unlike other networks, it is a network that has not been distinguished from news networks, program supply networks, and network organizations since the era of the former name (described later) "Mega TON Network".

Also, before TXN was officially launched, there were secondary affiliations with other stations. Chukyo Television in the complex network era and Mainichi Broadcasting in the era before the affiliation change correspond to this. First of all, the former was initially based on TV Asahi, but the Chunichi Shimbun invests in the principle of eliminating concentration. Since it was not possible to do so, it was decided to receive investment from Nihon Keizai Shimbun, so there was a network relationship with Tokyo 12 Channel → TV Tokyo. Chukyo TV subsequently joined NNN in April 1973, then NNS and became a full Nippon Television affiliated station, but until the opening of TV Aichi in 1983, partly with three other wide-area stations (Chubu Nippon Broadcasting, Tokai Television, Nagoya Television), TV Tokyo were broadcast in the form of program sales. Next, the latter was mainly NET after the establishment of the Federation of Five Companies in 1960, but in 1968 the Japan Science and Technology Foundation fell into a management crisis. At that time, Mainichi Broadcasting invested in "Tokyo 12 Channel Production", which is a broadcast program production company. Broadcast TV) continued the cross-net station until the net change. After that, Mainichi Broadcasting moved to the TBS affiliation station due to the network change, but from the remnants of the swap era, even after the transition to TBS, Tokyo 12 Channel → Listed as a major shareholder of TV Tokyo, and is still listed in the top 10 major shareholders of TV Tokyo Holdings. Conversely, programs produced by Mainichi Broadcasting were sometimes broadcast on TV Tokyo only in the Kanto region (such as "Fortune Quest L"). Since TXN was officially launched on April 1, 1989, there have been no crossnet stations with other affiliates.

The stations affiliated with TXN are all TV stations.

The TXN network is one of Japan's five major commercial networks that does not have a page for breaking news.