Episode Ratings Grid

Every episode at a glance, color-coded by rating. Rows are episode numbers within each season, columns are seasons.

M
S1
E1
8.0
E2
8.4
E3
8.8
Avg
8.4
Great
SeriesScores.com

Episode Power Rankings

The best and worst episodes at a glance. Use this to find must-watch episodes or ones you might want to skip.

🏆 Top Episodes

#1 8.8

S1E3 The Story of Everything

The world's most famous living scientist presents the wonders of the universe, revealing the splendor and majesty of the cosmos as never seen before. See how the universe began, how it creates stars, black holes and life -- and how everything will end.

#2
S1E2 8.4

Time Travel

"Is Time Travel Possible?" Hawking explores the world's favorite scientific 'what if?' warping the very fabric of time and space as he goes. From killing your grandfather to riding a black hole, see how time travel may actually come true.

#3
S1E1 8.0

Aliens

Hawking joins science and imagination to explore one of the most important mysteries facing humankind — the possibility of alien, intelligent life and the likelihood of future "contact." Traveling from the moons of Jupiter to a galaxy maybe not so far, far away, he'll introduce us to possible alien life forms — in stunning CGI — that face the same universal trials of adaptation and survival as the residents of Earth.

📉 Bottom Episodes

#3
S1E1 8.0

Aliens

Hawking joins science and imagination to explore one of the most important mysteries facing humankind — the possibility of alien, intelligent life and the likelihood of future "contact." Traveling from the moons of Jupiter to a galaxy maybe not so far, far away, he'll introduce us to possible alien life forms — in stunning CGI — that face the same universal trials of adaptation and survival as the residents of Earth.

  1. 2. S1E2 "Time Travel" 8.4
  2. 1. S1E3 "The Story of Everything" 8.8
SeriesScores.com

The Quality Arc

Each point is an episode, plotted chronologically. The colored bands mark season boundaries. Look for upward or downward trends to see if quality improved or declined over time.

S1 7.57.98.38.79.19.5 Rating 1 2 3 Episode 10 9 8 7 6 5
SeriesScores.com

Episode Engagement

Vote count shows how many people cared enough to rate. High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

Rating threshold:
2 Standouts
0 Infamous
1 Hidden Gems
0 Forgettable
Standouts Infamous Hidden Gems Forgettable Global: 7.5 7.27.57.88.28.58.8 Rating 293 307 321 336 351 Votes (log scale)
Top Standout: S1E3 The Story of Everything
Best Hidden Gem: S1E2 Time Travel

Episodes plotted by rating vs. vote count. The vertical line marks the rating threshold (7.5). More votes = more engagement. Toggle above to compare against global or show-specific median.

SeriesScores.com