[KDDI Corporation] KDDI MUSEUM holds special exhibition “Behind the Scenes of Broadcasting: Communication” themed on 100 years of broadcasting
KDDI Corporation Press Release: October 21, 2025 KDDI MUSEUM holds special exhibition “Behind the Scenes of Broadcasting: Communication” themed on 100 years of broadcasting. ~A special event where you can listen to the sound of a radio from 100 years ago will be held on November 29th~ KDDI will hold a special exhibition, “Communications Behind Broadcasting” (hereinafter referred to as the “Exhibition”), from October 20, 2025 to February 3, 2026 at the KDDI MUSEUM (located in Tama City, Tokyo), a corporate museum dedicated to the history of international communications in Japan. (Note 1) 2025 marks a major milestone: 100 years since the start of broadcasting in Japan. The exhibition will introduce the mechanisms and innovations behind the scenes of broadcasting through historical materials, actual equipment displays, and interactive content. November 29, 2025, will be a free tour day, and a special event using a 100-year-old radio (reproduction) will also be held.
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infrastructure. As television became more widespread and evolved into satellite broadcasting, terrestrial digital broadcasting, and video streaming via the Internet, communications technology played a vital role in delivering video and audio from broadcasting locations to broadcast stations, and from broadcast stations to viewers. This exhibition focuses on the “communications” that lie behind the glamorous facade of broadcasting. The exhibition will introduce the relationship between broadcasting and communications through historical materials and content that allows visitors to experience frame-by-frame transmission. Additionally, for the first time in the Tokyo metropolitan area, we will exhibit a replica of the first Japanese-made crystal radio, which has the same structure as the one on display at the Sharp Museum (Tenri City, Nara Prefecture). (Note 2) As a telecommunications carrier, KDDI has provided numerous technical support and infrastructure development services in the broadcasting world. This exhibition aims to provide an opportunity to look back on our history and consider the future of broadcasting and
communications.
■About this exhibition
https://prcdn.freetls.fastly.net/release_image/97141/156/97141-156-60be83fbf8ddaea118dea43441e08daf-809×628.png Overview It’s been 100 years since broadcasting began. Whether it’s radio, television, or even smartphones, we receive information and inspiration through broadcasts. However, to ensure that broadcasts reach everyone, we need the power to connect. This exhibition will introduce the mechanisms and ingenuity of the “communications” that have played a role behind the scenes of broadcasting through videos and interactive corners, divided into three themes: “Behind that moving moment there is communication,” “Behind that news there is communication,” and “100 years of broadcasting table.” Event period October 20, 2025 – February 3, 2026 Admission Fee General admission: 300 yen *Free for university students and younger. Please present your student ID upon entry. Free admission for those with a disability certificate and their caregivers. How to visit
■Special Event “A 100-Year-Old Radio is Revived! Listen to the Sound of Japan’s First Radio” Program contents (1) Special Lecture: The Beginnings of Broadcasting and Changes in the World We will be welcoming a lecturer from Sharp, the company that successfully assembled and began selling the first domestically produced crystal radio receiver 100 years ago, to give a lecture on the theme of “The Beginnings of Broadcasting and Changes in the World.” Lecturer: Ikuhiro Yoshida (Sharp Alumni Association) (2) Listen to the Sound of the First Japanese-Made Radio You will have the experience of listening to modern radio broadcasts using a reproduction of the first Japanese-made crystal radio, which is on display at the Sharp Museum. Event date and time November 29, 2025 [1st] 11:00-12:00 [2nd] 14:00-15:00 Number of people recruiting Limited to the first 40 people per session. *Includes accompanying persons. Maximum of 4 people per group. *Recommended age: elementary school age and above. Adults are also welcome to participate. How to participate ■Special lecture lecturer introduction
https://prcdn.freetls.fastly.net/release_image/97141/156/97141-156-7acbbfcc2dae07124fcf05a6ab1f5364-129×130.png Mr. Ikuhiro Yoshida (Sharp Social Friends Association) Former professor at Osaka University Graduate School of Information Science. Doctor of Engineering Joined Sharp Corporation in 1986. He worked in research and development of image and video-related equipment, and since 2012 has led the company’s research and development of 4K/8K and 5G technologies. After retiring in 2019 and finishing his second job, he joined the Sharp Alumni Association Radio Enthusiasts Club in 2024 at the age of 65. In the club, he combines his amateur radio interests, which he started at age 14, with his love of historical research, to restore and maintain old radios and use them to carry out projects that commemorate the past. He leads the club. ■About KDDI MUSEUM free admission Event date and time November 29, 2025
10:00-16:30 (last entry 16:00) Admission fee This is a free tour day for KDDI MUSEUM, so admission is free for everyone. How to participate Register at the reception on the day. For more details, please see here.
(Reference) ■KDDI MUSEUM Located within the LINK FOREST accommodation facility in Tama City, Tokyo, the museum uses actual equipment and documents to explain the history of international communications in Japan over the past 150 years, dating back to 1871. In addition to displaying all the mobile phones and smartphones sold under the au brand, the museum also offers hands-on experiences with the Metaverse, 5G/IoT technology, and more. Address: 3-5-3 Tsurumaki, Tama City, Tokyo LINK FOREST 2F Business hours: Monday to Friday 10:00 to 16:30 Closed: Saturdays, Sundays, public holidays, New Year’s holidays, and other days designated by the museum. The museum will be closed from December 15, 2025 to January 5, 2026 for facility maintenance. Admission Fee: 300 yen (free for university students and younger and persons with disabilities) Advance reservations are required to visit. For details on reservations and fees, please see the KDDI MUSEUM official website below. Official website: https://www.kddi.com/museum/ (Note 1) Due to facility maintenance, the museum will be closed from December 15, 2025 to January 5, 2026. (Note 2) Due to an event being held at another museum from November 5, 2025 to November 10, 2025, the reproduction of the first domestically produced crystal radio will not be on display at the museum.