逢星期二晚上10时，港台电视31为大家呈献一小时的历史纪录片时段，让观众飞越时空回到过去，探究地球每个⻆落曾发生的重大事件。透过搜罗自各地各式各样的纪录片或剧情式纪录片，让大家一起鉴古知今，窥探未来。

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.