[3] On April 1, 1952, at 11p.m., the first late night radio show, the English Hour, started, whose target was Occupation Forces soldiers and their families.

[4] In 1958, the station started professional baseball broadcasts, with Toshiba as the title sponsor at the time.

On April 13, 1962, TBS obtained a preliminary license for AM stereo broadcasts (the first in Japan) using the AFM (AM/FM) method and the experimental callsign JOK2R.

The license was obtained on June 30 and experimental broadcasts (30 to 45 minutes per night) are conducted from July 21, after TBS Radio had signed off.

Since no re-license application was made after that, the license was granted in the same year, and the experimental broadcasts ceased.

On March 8, 1969, the Tokyo Broadcasting Labor Union conducted a partial strike demanding a raise in bases.

As a result, Tokyo Broadcasting System's television division, which converted to a TV-only station, abolished and returned the callsign "JOKR-TV" and changed its callsign to JORX-TV (later JORX-DTV) and the call name TBS Television was granted.