Browse the full Discovery History TV guide for Tuesday, 30 June 2026. 26 programmes listed , including 7 tonight. UK listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.
Early Morning
00:00
1h
The mysteries surrounding the formation of supermassive black holes
01:00
1h
Don Wildman examines a life vest worn during an ocean rescue
02:00
1h
A mob informant who helped take down Al Capone
03:00
1h
New evidence emerges over Yuri Gagarin's mysterious death
04:00
1h
Investigating the Bermuda Triangle's most infamous shipwreck and lost flights
05:00
30m
Home shopping
05:30
30m
Home shopping
Morning
06:00
1h
Your one-stop-shop for all things cruise
07:00
1h
The supersonic plane's last flight
08:00
1h
An excited Drew and Paul get their hands on a Porsche 914
09:00
1h
Bruce Crompton visits a Cold War underground bunker
10:00
1h
Experts reveal why Egypt's Black Pyramid collapsed
11:00
1h
Scanning the ocean floor in search of sunken sphinxes, temples and shipwrecks
Daytime
12:00
1h
The possibility of life on Mars in previous eras
13:00
1h
A mysterious object that the New Horizons spacecraft encountered
14:00
1h
Unexplored archaeological sites along the Adriatic coast of Croatia
15:00
1h
Josh Gates reexamines a case he has been chasing for years
16:00
1h
Horrified locals in Iowa report sightings of a giant winged creature
17:00
1h
A dog with a sixth sense for danger
Tonight's Highlights
18:00
1h
Don Wildman investigates a deep-sea design with mysterious origins
19:00
1h
Experts investigate the last stars of the cosmos
20:00
1h
The supersonic plane's last flight
21:00
1h
Josh explores stories of perseverance, such as a Salem witch trial case
22:00
30m
An insight into how people care for bees
22:30
30m
How money is kept safe inside cash machines
23:00
1h
Bruce Crompton visits a Cold War underground bunker