Some of the narration work that Mariko has done is as follows.

• BS Spot
• Doyou Studio Park
• E! Hollywood Express
• Fukuyama Engineering
• Geinoukai no kibishisa oshiemasu special
• Go Go Market
• Hamaraja
• Hanamaru Market
• Hoshi no densetsu
• Kagayake! Songura Tengoku
• Love Dokyu!
• Mr Marikku -Mahou no jikan
• Renai no katei kyoushi
• Rubikon
• Sekai choumicchaku TV! Wareware ha chikyuujin da!!
• Sekai Gorippa desu ne!
• Sokupou Soccer 21
• Songwrite Show!
• Sports Urugusu
• Sunday Morning (Hayawakari isshuukan)
• Tamori no Gujjobu! Munehatte kono shigoto!
• Tensai! Tokoroten
• Unnan no Hontoko!