逢星期二晚上10時，港台電視31為大家呈獻一小時的歷史紀錄片時段，讓觀眾飛越時空回到過去，探究地球每個⻆落曾發生的重大事件。透過搜羅自各地各式各樣的紀錄片或劇情式紀錄片，讓大家一起鑑古知今，窺探未來。

The one-hour time slot at 10:00pm every Tueday on RTHK 31 is dedicated to audience who would like to travel to the past to explore the signigicant events that had happened in every corner of our globe. Through various types of documentaries or docu-dramas being acquired from around the world, we may be able to examine the past, understand the present and glimpse our future.