Episode Ratings Grid

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Great

Episode Power Rankings

The peaks and the valleys. Find the essential episodes — and the ones to skip.

#1
S1E2 8.5
Expanding Universe
#2
S1E1 8.4
What Is Life?
#3
S1E3 8.3
Endless Forms Most Beautiful
#4 Home S1E5 8.3
#5 Size Matters S1E4 8.2

Lowlights

#5 S1E4 Size Matters 8.2

Professor Brian Cox travels to Australia, the big country down under, to explain how size determines the nature of life. Gravity and electromagnetism impact heavily on different types of life - from a single bacterium to a 110 meter tree - determining shape, movement and longevity.

#4 Home S1E5 8.3
#3 Endless Forms Most Beautiful S1E3 8.3
#2 What Is Life? S1E1 8.4
#1 Expanding Universe S1E2 8.5

The Quality Arc

Each point is an episode, plotted in order. Colored bands mark season boundaries. Look for the rise, the plateau, or the decline.

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Episode Engagement

High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

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