DocumentaryNewsABC TV

The Best Seasons of Catalyst

Every season of Catalyst ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Catalyst!

Top season
Season 18
7.5avg
Best episode
S23E6 The Science of Relationships
8.01 votes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes
#1

Season 18

17 Episodes

First Aired: Aug 2017

7.5/ 10
Average Rating
Best episodeE4 · The Day The Dinosaurs Died 7.5
#2

Season 23

6 Episodes

First Aired: Feb 2022

7.5/ 10
Average Rating
Best episodeE6 · The Science of Relationships 8.0
#3

Season 1

26 Episodes

First Aired: Jan 2011

N/A/ 10
Average Rating

Other Seasons

#4

Season 15

22 Episodes

First Aired: Jul 2014

N/A/ 10
Average Rating
#5

Season 16

20 Episodes

First Aired: Feb 2015

N/A/ 10
Average Rating
#6

Season 17

40 Episodes

First Aired: Feb 2016

N/A/ 10
Average Rating
#7

Season 19

8 Episodes

First Aired: Mar 2018

N/A/ 10
Average Rating
#8

Season 20

8 Episodes

First Aired: Feb 2019

N/A/ 10
Average Rating
#9

Season 21

6 Episodes

First Aired: Apr 2020

N/A/ 10
Average Rating
#10

Season 22

11 Episodes

First Aired: Feb 2021

N/A/ 10
Average Rating

Keep going

Top-rated Catalyst episodes

  1. #1The Science of Relationships S23E68.0
  2. #2The Day The Dinosaurs Died S18E47.5
  3. #3Forever Young? The Rise of Injectables S23E47.0
  4. #4Jane Goodall S1E1
  5. #5Shark Behavior S1E2

Browse Catalyst by season

If you like Catalyst