TV show availability guide
Tech Effect
The technology and people behind important historical events are spotlighted.
2004 9.0/10 community score 1 season · 7 episodes Returning Series
- Documentary
Viewing market
Country-level availability
Where to watch in United States
7 platforms currently listed across all viewing options
Data checked 27 Oct 2026, 11:25 UTC
Included with subscription
4Linked platform guideAmazon Prime VideoPlatform guideView details Streaming providerHISTORY Vault Apple TV channelNo linked platform guide yetDetails unavailable Streaming providerHISTORY Vault Amazon ChannelNo linked platform guide yetDetails unavailable Linked platform guideAmazon Prime Video with AdsRelated brand guideView details
Free with ads
3Streaming providerThe Roku ChannelNo linked platform guide yetDetails unavailable Streaming providerAmazon Prime Video Free with AdsNo linked platform guide yetDetails unavailable Streaming providerAmazon MX PlayerNo linked platform guide yetDetails unavailable
Series schedule
Seasons and episode dates
A concise series timeline, including the latest aired episode and the next date currently listed.
- First aired
- Seasons
- 1
- Episodes
- 7
- Status
- Returning Series
Latest aired episode
S1 E7
St Valentines Day Massacre
Aired 30 min
The St. Valentine's Day Massacre in 1929 is discussed. Included: the forensic work of Calvin Goddard; the camera technology that captured the scene; and the printing presses that helped spread the news to the nation.
Next listed episode
No upcoming episode date is currently listed.
Season guide
Most recent seasons first
Season 1
7 episodes
First episode aired
About these dates: Air dates describe the series schedule and may change. They do not confirm that an episode is available on the same date from the providers listed above.
Reader conversation
Community discussion
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