2010年7月,40集悬疑剧《大侦探》在各地卫视相继播出,收视率节节攀升。剧中,梁冠华扮演了民国侦探吴世光,他叼着烟斗憨厚可爱、幽默风趣的形象及抽丝剥茧、层层推理、屡破奇案的旷世才华,让观众惊呼:“狄国老跑到上海滩破案来啦……” In 2010 July, 40 sets of suspense drama “big detective” broadcast one after another in all over the television, ratings steadily rising. In the play, Liang Guanghua played the Republic of China Detective Wu Shiguang, his pipe simple and honest lovely, humorous image and exorcism, layers of reasoning, repeatedly breaking the case of unparalleled talent, let the audience exclaim: “Di Guo old ran to Shanghai Beach break the case ... ”