I have a thing for spreadsheets. I compiled a list of every Star Trek show or movie and figured out what the time investment would be. As of January 1, 2020 – we’re at 590+ hours of Star Trek. These numbers are based on average episode length or movie run time.
The TV Shows
The Original Series
3 Seasons, 80 Episodes
Total Time: 67 hours, 4 minutes
The Animated Series
2 Seasons, 22 Episodes
Total Time: 8 hours, 42 minutes 
The Next Generation
7 Seasons, 178 Episodes
Total Time: 136 hours, 28 minutes 
Deep Space Nine
7 Seasons, 176 Episodes
Total Time: 132 hours
Voyager
7 Seasons, 170 Episodes
Total Time: 128 hours, 38 minutes
Enterprise
4 Seasons, 98 Episodes
Total Time: 70 hours, 40 minutes
The Movies
- The Motion Picture: 2 hours 11 minutes
- The Wrath of Khan: 1 hour 53 minutes
- The Search for Spock: 1 hour 45 minutes
- The Voyage Home: 1 hour 58 minutes
- The Final Frontier: 1 hour 46 minutes
- The Undiscovered Country: 1 hour 49 minutes
- Generations: 1 hour 57 minutes
- First Contact: 1 hour 50 minutes
- Insurrection: 1 hour 42 minutes
- Nemesis: 1 hour 56 minutes
- Star Trek (2009) – 2 hours 6 minutes
- Star Trek: Into Darkness – 2 hours 12 minutes
- Star Trek: Beyond – 2 hours 2 minutes
To Boldly Go Where Everyone Has Gone Before 