KTXH (channel 20), branded as My20 Vision, is a television station in Houston, Texas, United States, airing the MyNetworkTV programming service.

The two stations share studios on Southwest Freeway (I-69/US 59) in Houston; KTXH's transmitter is located near Missouri City, Texas.

These were Channel 20 Houston, Inc., a group led by Robert S. Block of Milwaukee;[2] Channel 20, Inc., headed by Sidney Shlenker;[3] and CPI Subscription TV, subsidiary of cable television company Communications Properties, Inc.[4][5] CPI withdrew, and a settlement application between the Block and Shlenker consortia—Channel 20, Inc.—was granted the construction permit by the Federal Communications Commission (FCC) on May 19, 1980.

That station began broadcasting in February 1981 as a hybrid operation, with commercial programming and ON TV, the STV service owned by Oak Industries.

[7] Channel 20's launch was delayed due to holdups in determining the local structure of the ON TV franchise and a dispute involving the mineral rights under the new Senior Road Tower, a 1,971-foot (601 m) mast in Fort Bend County that would be used to transmit KTXH and nine Houston FM radio stations.

By that time, though, Oak had frozen its plans into eventual cancellation, with Grant telling Ann Hodges of the Houston Chronicle that their operation had shut down completely.

[9] This was to the benefit of KTXH's ad-supported commercial offerings, giving it prime time hours to program (particularly with sports) and making reticent cable systems more willing to put the new station on their lineups.

A failure in a clamping device on the hoisting mechanism caused a 75-foot (23 m) section of antenna to fall off, severing a guy wire and leading to the tower's collapse.

It also immediately ordered a new transmitter[17][18] as the Senior Road Tower consortium moved ahead with reconstruction of the mast,[19] where KTXH would return upon its completion in October 1983.

[17][18] Even while broadcasting from a temporary facility atop the Allied Bank Plaza, KTXH continued to post competitive numbers against KRIV.

[21] The sale was held up for several months at the FCC, which conditioned the purchase on Gulf divesting FM stations in both cities.

[31] TVX implemented budget cuts, laying off about 15 percent of the staff at the acquisitions, and renegotiated programming costs; KTXH's production unit was completely disbanded.

[32] The company was to pay Salomon Brothers $200 million on January 1, 1988, and missed the first payment deadline, having been unable to lure investors to its junk bonds even before Black Monday.

[33] While TVX recapitalized by the end of 1988,[34] Salomon Brothers reached an agreement in principle in January 1989 for Paramount Pictures to acquire options to purchase the investment firm's majority stake.

KHTV, which became KHWB in 1999, cited its affiliation with The WB when it dropped the team after three years; after a disastrous start to the 2000–2001 season on new independent KTBU, plagued by low ratings and signal coverage issues in parts of the Houston metropolitan area, the Rockets moved their games back to KTXH, with some Houston Comets women's basketball telecasts appearing on the station.

[60] On December 7, 2021, KTXH became one of two ATSC 3.0 (NextGen TV) transmitters for the Houston area as part of a deployment involving 10 stations in the market.