 1490 continued to broadcast in AM Stereo until 1993.KDOK would continue to program the famed Top 40 format in Tyler for nearly 25 years, facing various forms of competition from newcomers such as KTYL-FM and KPXI, as well as other AM Top 40s in the area such as KLUE in Longview.On New Years Day 1990, the heritage KDOK Top 40/Contemporary Hit Radio format was finally dropped from 1490, reformatting with Big Band and Adult Standards music.