XHRIO-TDT (channel 15) was a television station in Matamoros, Tamaulipas, Mexico, which served the Rio Grande Valley area in southern Texas, United States.

In 1977, a joint venture was formed between the owners of KRIO (910 AM) in McAllen and KRIX (99.5 FM; now KKPS) in Brownsville and Serna Alvear.

The venture brought channel 2 to the air on January 12, 1979 as XHRIO-TV (with call sign authorized on March 16 of that year), an English-language independent station.

It branded as "XRIO", running primarily reruns of older American shows and recent feature films.

Although XHRIO-TV had a broadcast signal superior to its U.S. counterparts, it suffered from serious underfunding and mismanagement by the ownership of the studio facility.

In 1981, the owners of the Mexican concession ended the delivery of programming tapes across the border to the channel 2 transmitter and converted XHRIO to a Spanish-language independent station aimed at Matamoros viewers.

Prior to XHFOX's arrival and before XHRIO took Fox, Lower Rio Grande viewers on the American side received the network from the nationwide Foxnet channel.

In 2011, low-powered sister station KSFE-LD began airing a simulcast of XHRIO on its main channel 67.1, with KSFE's previous CW programming being moved to 67.2.

On August 7, 2012, Fox programming was interrupted so that XHRIO could air what they labeled a "señal de prueba" or "test signal" feed of MundoFox on 2.1.

After numerous unconfirmed rumors that MundoFox would be on 2.1, Valley residents were finally given confirmation on August 8, 2012, when the station's official Twitter feed announced that XHRIO would join MundoFox and Fox would remain on KFXV-LD, effectively splitting them off into two separate and distinctive channels.

[2] When XHRIO debuted in 1979, the station produced hourly bilingual news briefs with KRIO newscasters Fred Cantu and Rod Santa Ana during evening programming.

However, U.S. cable systems were effectively required to carry XHRIO anyway, since it is operated by Entravision, which owns stations on the American side of the border.

In this case, Entravision has the right to require cable systems to offer XHRIO as part of the compensation for carrying KNVO.