On November 30, 2005, however, XHUNAM launched its digital signal, one of the first in the country and also one of the first digital-only stations in Mexico.

Although the National Autonomous University of Mexico (UNAM) operates the TV•unam network since 2005, the programming on XHUNAM was until 2024 completely different from said network; it consisted merely of old concerts conducted by Herbert von Karajan, looping all-day long, weekdays only, generally from 7:00 a.m. to 11:30 p.m. as a signal test.

TV UNAM instead largely depended on SPR transmitters, including XHSPR-TDT in Mexico City, for broadcast coverage.

Initially broadcasting with an effective radiated power of 200 watts, XHUNAM generally covered only the greater UNAM area in Mexico City.

A power increase to 1,500 watts was approved in 2017 and extends the signal reach beyond the immediate campus to other parts of western and southwestern Mexico City.