Star Trek: The Original Series (digital)
Star Trek: The Original Series has been released on digital formats. The original and remastered series are generally separate releases.

Original releases 

These releases of  are available as a single purchase for the entire series, in collections or season sets, or episode by episode.

VUDU

Original season and collection releases

Amazon

iTunes 
(in SD)

Remastered releases 

These releases of  are available as a single purchase for the entire series, in collections or season sets, or episode by episode.

Google Play

VUDU

Remastered season and collection releases

Amazon 
 
 
 
 Star Trek: The Original Series - Fan Favorites Collection

iTunes 
(in SD and HD)
 
 
 
 Star Trek: The Original Series - Fan Favorites Collection
 Best of Star Trek: The Original Series - Remastered, Volume 1
 Best of Star Trek: The Original Series - Remastered, Volume 2

VUDU 
 Star Trek: The Original Series - Fan Favorites Collection