KTKX (106.7 FM "106.7 The Eagle") is a commercial radio station, licensed to Terrell Hills, Texas, and serving the San Antonio metropolitan area.

KTKX's studios and offices are located on Datapoint Drive in Northwest San Antonio near the South Texas Medical Center complex.

KTUF was the FM counterpart to KAPE (now KCHL), with both stations owned by the Southern Sound System Broadcasting Company.

The flip gave the San Antonio market two mainstream Top 40 stations, the other being KXXM, owned by Clear Channel (now iHeartMedia).

At first, KELZ's playlist was broad-based, airing "All The Hits" in an effort to cut into KXXM, whose direction at times tended to lean toward modern rock.

On October 6, 2006, KELZ flipped back to rhythmic contemporary and adopted the "Power 106.7" branding, along with a call letter change to KPWT to match it.

The move behind this switch may have been the pending use of Portable People Meters (PPM) in determining ratings in the San Antonio market.

At that time, a classic-based Adult Album Alternative format was launched as "X106.7, World Class Rock," with "Take Me to the River" by Talking Heads being the first song played.

This was not the first time the AAA format was tried in San Antonio; the first was KMFR "103.7 Mighty Fine Rock" from 2001-2004 (now KAHL-FM airing Adult Standards).

Throughout June 2014, Cox-owned stations in Orlando (WCFB's HD-2 feed) and Atlanta (WTSH) were heard flipping to alternative rock using the "X" name.

In response, KTKX dropped the "X" name that same weekend and simply called itself "106.7, The Only Classic Rock Station You Can Hear Everywhere in San Antonio.

"[12] Alternative rock returned to San Antonio on Alpha Media's "103.3 The App," which is broadcast on translator station K277CX and KTFM's HD2 subchannel until 2017.