TV UNAM coverage as an over-the-air digital subchannel. TV UNAM is generally on the air daily from 8am to as early as midnight (longer on some nights, especially if there is a movie or concert scheduled). Although XHUNAM-TDT continues to operate on digital channel 20 in Mexico City, it has largely been used for experimental transmissions and does not broadcast the programming of TV UNAM. SPR's Mexico City station XHSPR-TDT carries it on channel 20.1. TV UNAM TV UNAM (stylized as "tvunam" and "tv•unam", formerly written "teveunam") is an educational television network owned and operated by the National Autonomous University of Mexico
Mexicans in 1936), were established during the first half of the 20th century. Most of the new research institutes were created within UNAM. Twelve institutes were integrated into UNAM from 1929 to 1973. In 1959, the Mexican Academy of Sciences was created to coordinate scientific efforts between academics. In 1995 the Mexican chemist Mario J. Molina shared the Nobel Prize in Chemistry with Paul J. Crutzen and F. Sherwood Rowland for their work in atmospheric chemistry, particularly concerning the formation and decomposition of ozone. Molina, an alumnus of UNAM, became the first Mexican citizen to win the Nobel Prize in science.