Episode Ratings Grid

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

M
S1
S2
S9 1-30
S9 31-33
S11 1-30
S11 31-33
S14
S15
S17
S18
S19
S20
S21
S22
S23
S24
S27
S29
S30
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S47
S48
S49
S50
S51
S52
S53
S54
S55
S56
S57
S58
S59
S60
S61
E1
7.4
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
7.6
?
8.0
?
7.0
6.8
7.7
?
7.7
?
6.9
7.5
7.0
7.8
?
7.6
7.9
6.7
?
7.9
5.6
7.9
7.8
6.6
7.4
6.8
6.9
?
E2
?
—
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
8.5
?
?
7.2
8.0
7.3
?
7.5
6.7
?
6.8
8.0
7.5
6.9
?
6.7
6.6
?
6.7
7.0
7.6
7.6
7.0
E3
?
?
?
?
?
?
?
?
?
?
?
?
?
?
8.1
?
?
?
?
—
—
?
?
?
?
7.6
?
?
5.8
8.2
?
?
7.7
7.4
7.7
8.0
7.5
7.6
7.3
?
7.4
7.4
7.0
?
7.1
?
7.8
7.4
E4
7.1
—
?
?
?
?
?
?
?
6.0
?
?
?
?
?
?
?
—
6.5
?
?
?
7.8
?
8.1
8.0
7.1
6.7
7.9
7.8
7.5
8.1
7.8
7.1
?
6.8
7.4
7.2
7.3
7.1
7.8
7.2
7.6
6.8
7.1
?
E5
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
8.3
?
?
?
?
?
?
8.6
7.8
7.0
?
5.8
7.2
?
7.5
6.8
7.7
7.7
7.9
7.4
6.9
7.4
?
7.1
6.8
7.9
6.0
5.9
?
E6
?
?
?
9.2
?
?
?
?
?
?
8.1
?
?
?
?
8.3
—
?
?
?
?
5.8
?
?
8.0
7.4
?
6.9
8.1
7.8
7.1
6.8
7.7
6.3
7.8
7.2
6.6
?
8.2
7.5
6.4
7.1
7.6
E7
?
?
?
?
?
?
?
7.6
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
7.4
?
?
?
?
?
?
8.0
6.9
7.8
7.2
7.3
7.8
6.5
6.8
7.1
5.7
7.2
6.6
E8
—
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
7.6
?
?
6.6
?
?
7.6
6.5
7.8
7.0
7.6
7.5
7.4
7.5
?
7.8
7.5
7.4
7.0
7.1
7.1
7.5
7.2
7.1
7.2
E9
?
?
?
?
?
?
?
8.6
?
?
?
?
?
?
?
?
?
?
7.3
?
?
?
?
?
7.7
7.1
8.4
6.6
?
6.5
7.5
6.3
7.4
7.8
7.8
6.8
6.6
7.4
7.2
7.2
6.2
7.5
E10
?
?
?
—
?
?
?
—
8.1
?
?
?
?
?
?
?
?
?
—
?
?
?
7.4
6.9
?
6.9
?
7.6
7.9
6.8
7.8
?
7.4
6.6
7.7
7.6
7.5
7.1
7.1
6.8
7.6
E11
?
?
?
?
?
?
?
—
?
?
?
?
?
?
?
?
?
?
?
?
?
8.1
8.1
7.5
7.8
7.1
?
8.4
7.4
7.9
8.2
8.3
?
?
7.7
8.0
7.9
6.8
7.4
6.6
E12
?
?
?
6.8
?
?
?
—
?
?
?
8.4
?
?
?
?
?
?
?
?
?
?
—
7.6
?
8.4
7.2
7.3
7.3
6.5
7.7
?
8.2
7.1
6.8
7.4
6.4
6.1
7.6
E13
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
8.0
7.0
—
?
?
8.0
7.4
6.9
7.5
7.3
7.8
7.7
?
8.1
7.1
6.9
7.0
7.0
6.4
E14
?
?
?
?
?
?
?
?
?
?
?
8.3
?
?
?
?
7.5
—
?
?
7.7
—
8.3
6.7
6.9
6.8
6.8
6.7
?
7.9
?
7.9
7.9
7.7
7.2
7.1
8.4
—
E15
—
?
6.3
?
?
?
?
?
?
?
?
?
?
?
7.8
?
?
—
7.8
?
9.6
—
6.1
7.8
6.7
?
8.0
8.7
8.0
6.2
7.7
7.4
6.7
6.9
6.5
5.7
6.7
—
E16
—
7.0
?
?
?
?
?
?
?
?
?
?
—
?
?
?
?
?
7.4
?
?
—
7.9
?
7.4
?
6.4
7.3
7.8
8.1
7.5
6.9
7.0
?
7.3
8.1
—
E17
?
?
?
?
?
?
?
?
?
?
?
?
—
?
?
?
?
?
?
7.3
—
8.0
?
?
?
7.0
8.1
7.1
6.6
7.3
7.9
7.1
?
6.8
7.4
—
E18
?
?
?
?
?
?
?
?
?
?
8.4
?
?
?
?
?
?
—
?
7.5
—
7.6
?
7.7
7.4
7.1
7.9
7.6
7.6
?
?
7.5
7.7
E19
?
?
?
?
7.8
?
?
?
?
?
?
?
?
?
?
?
?
?
?
8.6
—
7.3
8.0
6.3
7.0
7.7
6.7
E20
?
?
?
?
?
8.2
?
?
?
?
?
?
?
?
?
?
6.7
8.2
6.9
?
7.5
E21
?
—
?
?
?
?
?
?
?
?
?
?
?
?
?
8.0
E22
?
?
?
?
?
?
?
?
?
?
?
?
?
E23
—
?
?
?
?
?
?
8.6
?
?
?
?
?
E24
?
?
?
?
?
7.8
?
?
?
E25
—
?
?
?
?
?
?
8.6
E26
?
?
?
?
?
?
?
E27
?
?
?
?
?
E28
?
?
?
?
E29
?
?
?
?
E30
?
?
?
Avg
7.3
7.0
6.3
8.0
7.8
8.2
7.8
8.1
8.3
6.0
8.3
8.4
8.1
8.6
7.8
8.3
7.5
7.6
6.9
7.6
6.6
7.3
8.0
7.6
7.4
7.5
7.2
7.4
7.3
7.4
7.5
7.4
7.6
7.4
7.6
7.3
7.2
7.2
7.2
7.0
7.0
7.0
7.1
7.3
7.3
6.9
7.2
Excellent
Great
Good
Mid
Bad
SeriesScores.com

You Might Also Like

See All
7.6
Our Universe

Our Universe (2022)

8.5
Into the Universe with Stephen Hawking

Into the Universe with Stephen Hawking (2010)

8.6
The Universe

The Universe (2007)

8.6

Human Universe (2014)

8.1
Modern Marvels

Modern Marvels (1993)

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 9.6

S37E15 The Secret Treasures of Zeugma

At the heart of the AIDS epidemic in Africa, there is a deadly mystery that has puzzled scientists for years. There are groups of people who are four times less likely to get HIV than other people, sometimes living just yards away, across a single valley - people with apparently similar behaviour and lifestyle. Scientists realised that if they could understand why these people are so much less vulnerable to the HIV virus, it might lead to an answer that could save millions of lives. And after 15 years of detective work it turns out there may be a remarkably simple answer: the high risk areas for HIV coincide with tribes who are uncircumcised. In Africa, it seems a man is much more likely to get HIV if he is uncircumcised.

#2
S11E6 9.2

Joey

In this episode, Horizon looks at connections between crime and poor housing design in the USA.

#3
S45E15 8.7

Do You Know What Time It Is?

Particle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking?

  1. 4. S18E9 "The Pleasure of Finding Things Out" 8.6
  2. 5. S19E23 "Killer in the Village" 8.6
  3. 6. S24E25 "The Quest for Tannu Tuva" 8.6
  4. 7. S37E5 "Miracle in Orbit" 8.6
  5. 8. S37E19 "The Boy Who Was Turned Into a Girl" 8.6
  6. 9. S38E2 "The Missing Link" 8.5
  7. 10. S21E19 "How to Film the Impossible" 8.4

📉 Bottom Episodes

#323
S54E1 5.6

Clean Eating: The Dirty Truth

Imagine if the food you eat could 'clean' your body and make you feel well. Dr Giles Yeo investigates the latest diet craze and social media sensation - clean eating.

  1. 322. S55E7 "A Week Without Lying - The Honesty Experiment" 5.7
  2. 321. S53E15 "Jimmy Carr and the Science of Laughter" 5.7
  3. 320. S41E5 "The Dark Secret of Hendrik Schön" 5.8
  4. 319. S41E3 "The Atkins Diet" 5.8
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 S2 S9 S11 S14 S15 S17 S18 S19 S20 S21 S22 S23 S24 S27 S29 S30 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52 S53 S54 S55 S56 S57 S58 S59 S60 S61 5678910 Rating 85 170 255 340 425 510 595 680 765 850 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:
83 Standouts
79 Infamous
69 Hidden Gems
92 Forgettable
Standouts Infamous Hidden Gems Forgettable Global: 7.5 5.66.47.28.08.89.6 Rating 6 14 33 77 179 Votes (log scale)
Top Standout: S18E9 The Pleasure of Finding Things Out
Most Infamous: S54E12 What Makes a Psychopath?
Best Hidden Gem: S37E15 The Secret Treasures of Zeugma

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

Series Trajectory

A simplified view: one point per season. This smooths out episode-to-episode noise to show the overall arc of the series.

5.56.37.17.98.79.5 Rating S1 S2 S9 S11 S14 S15 S17 S18 S19 S20 S21 S22 S23 S24 S27 S29 S30 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52 S53 S54 S55 S56 S57 S58 S59 S60 S61 Season 10 9 8 7 6 5
SeriesScores.com

Season Momentum

Did each season build momentum or fizzle out? Green arrows mean the finale rated higher than the premiere. Red means the opposite. Longer arrows = bigger swings.

5678910 Rating S1 7.4 7.1 -0.3 S2 7.0 7.0 0.0 S9 6.3 6.3 0.0 S11 9.2 6.8 -2.4 S14 7.8 7.8 0.0 S15 8.2 8.2 0.0 S17 7.8 7.8 0.0 S18 7.6 8.6 +1.0 S19 8.1 8.6 +0.5 S20 6.0 6.0 0.0 S21 8.1 8.4 +0.3 S22 8.4 8.3 -0.1 S23 8.1 8.1 0.0 S24 8.6 8.6 0.0 S27 7.8 7.8 0.0 S29 8.3 8.3 0.0 S30 7.5 7.5 0.0 S32 7.6 7.6 0.0 S33 6.5 7.3 +0.8 S34 7.6 7.4 -0.2 S35 6.6 6.6 0.0 S36 8.0 8.0 0.0 S37 8.2 8.1 -0.1 S38 7.8 7.4 -0.3 S39 7.0 7.9 +0.9 S40 7.8 7.5 -0.3 S41 7.1 7.4 +0.3 S42 8.0 8.0 0.0 S43 7.9 6.9 -1.0 S44 7.3 7.7 +0.3 S45 7.5 7.7 +0.2 S46 7.2 7.8 +0.6 S47 7.8 6.6 -1.2 S48 7.1 7.3 +0.2 S49 7.5 7.7 +0.1 S50 7.5 6.8 -0.7 S51 6.9 7.1 +0.2 S52 7.1 7.3 +0.2 S53 7.3 7.3 -0.1 S54 6.6 7.0 +0.4 S55 7.8 7.6 -0.2 S56 7.3 7.2 -0.1 S57 6.8 7.5 +0.8 S58 7.4 6.8 -0.6 S59 6.8 7.1 +0.3 S60 6.9 6.9 0.0 S61 7.0 7.4 +0.4
SeriesScores.com

Season Consistency

Some seasons are reliable bangers. Others are hit-or-miss. Each dot is an episode. Tightly clustered dots mean consistent quality. Scattered dots mean a mixed bag.

5678910 Rating S1 Rock Solid avg 7.3 S2 Rock Solid avg 7.0 S9 Rock Solid avg 6.3 S11 Erratic avg 8.0 S14 Rock Solid avg 7.8 S15 Rock Solid avg 8.2 S17 Rock Solid avg 7.8 S18 Uneven avg 8.1 S19 Steady avg 8.3 S20 Rock Solid avg 6.0 S21 Rock Solid avg 8.3 S22 Rock Solid avg 8.4 S23 Rock Solid avg 8.1 S24 Rock Solid avg 8.6 S27 Rock Solid avg 7.8 S29 Rock Solid avg 8.3 S30 Rock Solid avg 7.5 S32 Rock Solid avg 7.6 S33 Typical avg 6.9 S34 Steady avg 7.6 S35 Rock Solid avg 6.6 S36 Erratic avg 7.3 S37 Erratic avg 8.0 S38 Uneven avg 7.6 S39 Uneven avg 7.4 S40 Typical avg 7.5 S41 Erratic avg 7.2 S42 Uneven avg 7.4 S43 Uneven avg 7.3 S44 Uneven avg 7.4 S45 Uneven avg 7.5 S46 Uneven avg 7.4 S47 Uneven avg 7.6 S48 Uneven avg 7.4 S49 Typical avg 7.6 S50 Uneven avg 7.3 S51 Uneven avg 7.2 S52 Typical avg 7.2 S53 Uneven avg 7.2 S54 Uneven avg 7.0 S55 Uneven avg 7.0 S56 Uneven avg 7.0 S57 Uneven avg 7.1 S58 Typical avg 7.3 S59 Typical avg 7.3 S60 Rock Solid avg 6.9 S61 Steady avg 7.2 Episode Premiere/Finale

Each dot is an episode. Clustered dots = consistent quality. Scattered dots = variable season. Hover for episode details.

SeriesScores.com

You Might Also Like

See All
7.6
Our Universe

Our Universe (2022)

8.5
Into the Universe with Stephen Hawking

Into the Universe with Stephen Hawking (2010)

8.6
The Universe

The Universe (2007)

8.6

Human Universe (2014)

8.1
Modern Marvels

Modern Marvels (1993)