Tianjin TV's large-scale public welfare dream program "Happiness Knocks on the Door" invites four guests to express their wishes for happiness in each episode. The wishes include various public welfare stories, emotions, life, dreams, and the future. The four happiness observers act as happiness ambassadors to help guests solve problems, answer questions, enhance their sense of happiness, and propose solutions
Tianjin TV's large-scale public welfare dream program "Happiness Knocks on the Door" invites four guests to express their wishes for happiness in each episode. The wishes include various public welfare stories, emotions, life, dreams, and the future. The four happiness observers act as happiness ambassadors to help guests solve problems, answer questions, enhance their sense of happiness, and propose solutions