KTSC-FM

It went through many format changes over the years but REV 89 remained a student operated station.

Past formats included Hard Rock/Metal (prior to 1995), Modern Rock/Alternative (1995–1998), Top 40 (1998–2002, 2009–2017), and Rhythmic (2002–2009).

The current Adult Hits format has been in effect since December 26, 2017, after stunting with all Christmas music.

Rev 89 topped the Arbitron ratings for the first time in the spring of 2003.

In the fall of 2008, Rev 89 was the #3 station in the Pueblo market with a minimum of 7,000 listeners every 15 minutes.