Diagnosis: Unknown Facts, FAQ & Common Questions
2002 · Discovery Health Channel · Status: Ended · Rated: Not Rated
Frequently Asked Questions About Diagnosis: Unknown
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Diagnosis: Unknown have?
Diagnosis: Unknown has 2 seasons and 23 total episodes, spanning from its premiere on January 7, 2002 to September 17, 2004.
Is Diagnosis: Unknown renewed, ended, or canceled?
Diagnosis: Unknown has concluded its run and is officially ended.
How long does it take to binge watch Diagnosis: Unknown?
It takes 17h 15m (1035 minutes) to watch the complete run of Diagnosis: Unknown. At a standard pace of 2 hours per day, you will finish the entire series in approximately 9 days. Possible with dedication! Finishing this 17.3-hour series over Saturday and Sunday requires around 8.7 hours of viewing each day.
Where can you stream or watch Diagnosis: Unknown?
Diagnosis: Unknown is available for streaming on Amazon Prime Video, Amazon Prime Video with Ads, Shout! Factory Amazon Channel. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Diagnosis: Unknown?
Diagnosis: Unknown has an official content rating of Not Rated.
Who are the lead actors in Diagnosis: Unknown?
The primary ensemble cast includes Philip Crowley as Narrator.
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Philip Crowley | Narrator | – |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Diagnosis: Unknown are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on November 4, 2026.