Diagnosis: Unknown poster
Where to stream

Diagnosis: Unknown

6.019601 seasonTV-PGTV SeriesCrimeDramaDocumentary

Diagnosis: Unknown is an American medical drama that aired on CBS from July 5 to September 20, 1960. Produced by Bob Banner, the series aired as a summer replacement for The Garry Moore Show, a variety program.

ProducerBob Banner

Where to watch

Amazon Prime VideoAmazon Prime VideoAmazon Prime Video with AdsAmazon Prime Video with AdsShout! Factory Amazon ChannelShout! Factory Amazon ChannelFawesomeFawesomeAmazon Prime Video Free with AdsAmazon Prime Video Free with AdsCineverseCineverseTubi TVTubi TVAmazon MX PlayerAmazon MX Player
Availability shown for United States · rights vary by country

Seasons & Episodes

E1
The Case of the Radiant Wine
Jul 5, 1960
E2
Main Course - Murder
Aug 2, 1960
E3
A Sudden Stillness
Aug 9, 1960
E4
Final Performance
Aug 16, 1960
E5
The Case Of The Elder
Aug 23, 1960
E6
The Curse Of The Gypsy
Aug 30, 1960
E7
Gina, Gina
Sep 6, 1960
E8
The Parasite
Sep 13, 1960
E9
The Red Death
Sep 20, 1960

Cast

POPatrick O'Neal
Patrick O'Neal
Dr. Daniel Coffee
PNPhyllis Newman
Phyllis Newman
CMChester Morris
Chester Morris
MH
Martin Huston
CBCal Bellini
Cal Bellini

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Diagnosis: Unknown — streaming FAQ

Which OTT platform streams Diagnosis: Unknown?

Diagnosis: Unknown is streaming on Amazon Prime Video, Shout! Factory and Fawesome in United States, and available to rent or buy on Google Play Movies. It's not currently on Netflix.

Is Diagnosis: Unknown on Netflix?

No, Diagnosis: Unknown is not on Netflix in United States as of November 2026. It's currently on Amazon Prime Video and Shout! Factory.

Is Diagnosis: Unknown on Amazon Prime Video?

Yes — Diagnosis: Unknown is included with an Amazon Prime Video subscription in United States as of November 2026.

Where can I watch Diagnosis: Unknown for free?

Diagnosis: Unknown is available to stream free (with ads) on Fawesome and Amazon Prime Video Free in United States.

How many seasons are in Diagnosis: Unknown?

Diagnosis: Unknown has 1 season in total (9 episodes). The series concluded in 1960.

Are all episodes of Diagnosis: Unknown out yet?

Yes — all 9 episodes across 1 season of Diagnosis: Unknown are out and available to stream.

Is there a Season 2 of Diagnosis: Unknown?

No — Diagnosis: Unknown ended after 1 season, so there is no Season 2.