About this programme
The once-luxurious emporium of Rhapta disappeared centuries ago. Josh Gates dives into remote waters off Zanzibar in search of Africa's Atlantis.
Programme listing
Expedition Unknown
Chasing Africa's Atlantis
Channel
Discovery .History
Discovery .History
Starts
Thu 3 Sep 2026, 04:00
Thu 3 Sep 2026, 04:00
Ends
Thu 3 Sep 2026, 05:00
Thu 3 Sep 2026, 05:00
Category
News & Documentary
News & Documentary
When is Expedition Unknown next on TV?
Expedition Unknown is next on Discovery .History at 04:00 on Thu 3 Sep 2026.
What channel is Expedition Unknown on?
The next showing is on Discovery .History.
Is Expedition Unknown on TV tonight?
No further showing is listed tonight. The next airing is Thu 3 Sep 2026 at 04:00 on Discovery .History.
Know when it’s back on
Create a free TVGuideUK account and set reminders for Expedition Unknown, series links and favourite channels — handy when you found us by searching what time it’s on.
What channel?
Discovery .History
Discovery .History
Start time
04:00
04:00
Ends
Thu 3 Sep 2026, 05:00
Thu 3 Sep 2026, 05:00
Other airings
Thu 20 Aug
03:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .HistoryThu 20 Aug
04:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .History+ 1Thu 20 Aug
07:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .HistoryThu 20 Aug
08:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .History+ 1Thu 20 Aug
13:00Expedition Unknown
Vikings In AmericaDMAXThu 20 Aug
14:00Expedition Unknown
Hunt For The Metal LibraryDMAXThu 20 Aug
15:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .HistoryThu 20 Aug
16:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .History+ 1Thu 20 Aug
20:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .HistoryThu 20 Aug
21:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .History+ 1Fri 21 Aug
03:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .HistoryFri 21 Aug
04:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .History+ 1
03:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .HistoryThu 20 Aug
04:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .History+ 1Thu 20 Aug
07:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .HistoryThu 20 Aug
08:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .History+ 1Thu 20 Aug
13:00Expedition Unknown
Vikings In AmericaDMAXThu 20 Aug
14:00Expedition Unknown
Hunt For The Metal LibraryDMAXThu 20 Aug
15:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .HistoryThu 20 Aug
16:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .History+ 1Thu 20 Aug
20:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .HistoryThu 20 Aug
21:00Expedition Unknown
Great Women Of Ancient EgyptDiscovery .History+ 1Fri 21 Aug
03:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .HistoryFri 21 Aug
04:00Expedition Unknown
Sunken Treasure Of The BahamasDiscovery .History+ 1
Previous TV airings
Selected past broadcasts with their original date, time and channel details.
Wed 19 Aug 2026
16:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .History+ 1Wed 19 Aug 2026
15:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .HistoryWed 19 Aug 2026
14:00Expedition Unknown
Viking SecretsDMAXWed 19 Aug 2026
13:00Expedition Unknown
Butch Cassidy's Lost LootDMAXWed 19 Aug 2026
04:00Expedition Unknown
Riches Of Spain's Pirate KingDiscovery .History+ 1
16:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .History+ 1Wed 19 Aug 2026
15:00Expedition Unknown
Hunt For The Secret SeaplaneDiscovery .HistoryWed 19 Aug 2026
14:00Expedition Unknown
Viking SecretsDMAXWed 19 Aug 2026
13:00Expedition Unknown
Butch Cassidy's Lost LootDMAXWed 19 Aug 2026
04:00Expedition Unknown
Riches Of Spain's Pirate KingDiscovery .History+ 1