# Nippon TV 24 Hour Television charity programming

> Live situation record from CLSTR: https://clstr.news/situations/nippon-tv-24-hour-television-charity-programming
> Updated: 2026-08-25T02:35:00.000Z. Sources: 5. Developments: 3.

Nippon TV is preparing for its 49th annual ‘24 Hour Television’ broadcast, scheduled for August 29 to August 30. The program will feature the ‘School Revolution! 24-Hour Domino Challenge’, involving approximately 3,000 participants, including students from Nagareyama Municipal Koyama Elementary School. Members of Hey! Say! JUMP, such as Yuri Chinen and Hikaru Yaotome, have visited the school to promote the event.

Actress Mari Hoshino serves as the charity marathon runner for the ‘Increase ‘I Can Do It!’ Children’s Fund’. Motivated by her daughter’s struggle with congenital myopathy, Hoshino aims to bring smiles to children and society. To prepare, she has received guidance from former runners, including Yu Yokoyama of SUPER EIGHT and 2023 marathoner Hiromi, who advised her to focus on completing the journey within 24 hours rather than racing.

The upcoming broadcast, hosted by Teruyoshi Uchimura alongside Shinichi Hatori and Asami Mizuto, faces several challenges. The production is navigating scrutiny regarding past donation scandals and potential heatstroke risks for runners. Additionally, staff are managing sensitive editorial decisions concerning coverage of the Kumamoto earthquake and a recent explosion at an Aeon Mall in Kumamoto, due to the broadcaster’s sponsorship relationship with the Aeon Group.

## Timeline

### 2026-08-25: 24 Hour Television prepares for 49th annual broadcast

Nippon Television prepares for its 49th ‘24 Hour Television’ broadcast, featuring actress Mari Hoshino as the charity marathon runner amid editorial challenges regarding sensitive regional news.

2 sources. https://clstr.news/cluster/mari-hoshino-prepares-for-24-hour-television-charity-marathon

### 2026-08-20: Mari Hoshino receives marathon advice from Yu Yokoyama for charity run

Actress Mari Hoshino prepares for the ‘24 Hour Television’ charity marathon, receiving guidance from former runner Yu Yokoyama to support children facing medical challenges.

2 sources. https://clstr.news/cluster/mari-hoshino-receives-marathon-advice-from-yu-yokoyama-for-charity-run

### 2026-08-15: Nippon TV announces 24 Hour Television domino challenge and marathon runner

Nippon TV's ‘24 Hour Television 49’ will feature a massive 3,000-person domino challenge and a charity marathon run by actress Mari Hoshino to raise awareness for her daughter's health condition.

2 sources. https://clstr.news/cluster/nippon-tv-announces-24-hour-television-domino-challenge-and-marathon-runner

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Cite as: Nippon TV 24 Hour Television charity programming. CLSTR, https://clstr.news/situations/nippon-tv-24-hour-television-charity-programming