KTBZ (AM)

The next year the station was purchased by the Oklahoma College for Women,[8] and in 1925 the call sign was changed to KOCW.

KTUL was an affiliate of the CBS Radio Network, and carried CBS's schedule of dramas, comedies, news, sports, soap operas, game shows and big band broadcasts during the "Golden Age of Radio".

One of its early local stars, with a regular live music program, was a young teen-aged Patti Page.

In the 1950s, network programming moved from radio to television, so KTUL switched to a full service, middle of the road (MOR) format of popular adult music, news and sports.

It switched to a Top 40 hits format and the call letters were changed to KELI (with a little "i" in the station logo).

KELI's Top 40 format lasted for 20 years, outlasting rival KAKC, which switched to MOR and adult standards in 1979.