PBS Bias and Reliability


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Bias: Middle

Reliability: Reliable, Analysis/Fact Reporting


Ad Fontes Media rates PBS in the Middle category of bias and as Reliable, Analysis/Fact Reporting in terms of reliability. PBS (Public Broadcasting System) is a nonprofit public broadcaster and distributor of educational television founded in 1969. It is publicly funded and provides programming to TV stations across the United States.

Overall Score

The following are the overall bias and reliability scores for PBS according to our Ad Fontes Media ratings methodology.

Reliability: 47.92

Bias: -4.92

Panels of analysts from Ad Fontes Media regularly review representative sample content to rate it for reliability and bias. Each panel of analysts comprises one left-leaning, one right-leaning, and one center-leaning analyst.

The team considers a variety of factors when rating content. To determine its reliability score, we consider the content’s veracity, expression, its title/headline, and graphics. We add each of these scores to the chart on a weighted scale, with the average of those creating the sample content’s overall reliability score.

To determine sample content’s bias score, we consider its language, its political position, and how it compares to other reporting or analysis from other sources on the same topic. We add each of these scores to the chart on a weighted scale, with the average of those creating the content’s overall bias score.

The bias rating, demonstrated on the Media Bias Chart®️ on the horizontal axis, ranges from most extreme left to middle to most extreme right. The reliability rating, demonstrated on the chart’s vertical axis, rates sources on a scale from original fact reporting to analysis, opinion, propaganda and inaccurate/fabricated information.

Reliability scores for articles and shows are on a scale of 0-64. Scores above 40 are generally good; scores below 24 are generally problematic. Scores between 24-40 indicate a range of possibilities, with some sources falling there because they are heavy in opinion and analysis, and some because they have a high variation in reliability between articles.

Bias scores for articles and shows are on a scale of -42 to +42, with higher negative scores being more left, higher positive scores being more right, and scores closer to zero being minimally biased, equally balanced, or exhibiting a centrist bias.

Individual Content Sample Scores

These are the most recent content samples that Ad Fontes Media analysts have rated for this source.

Content Sample URL Bias Reliability
Ukraine examines bodies from mass graves discovered after regaining territory from Russia 0 47.67
Biden accuses Trump and his supporters of undermining the nation’s democratic values -10 41
Georgia Guidestones monument, called satanic by some, torn down after bombing -2 44.67
2022 Pennsylvania Primary Election Results -1 46
Master of American Propaganda 0 38.33
How the attack on the U.S. Capitol unfolded -4.33 48
President Trump and first lady test positive for COVID-19 -3.33 51.67
California legislation bans toxic chemicals in cosmetics -5.33 49.33
A century ago, some American women won the right to vote. Here’s what women say today -6 43.25
Gloria Steinem on the role of women of color in the suffrage movement -8 48
What you need to know about hydroxychloroquine and coronavirus -6.33 45.67
Oleandrin is a deadly plant poison, not a COVID-19 cure -3.4 46.2
How anti-Trump Republicans are working to defeat him -6.67 43.67
How to spot Comet NEOWISE before it disappears for thousands of years 0.33 51.33
Analysis: Cities hit hard by the COVID-19 pandemic face bankruptcy -2 44.67
David Brooks on emerging from loneliness to find ‘moral renewal’ -1.33 40
Dozens of medical professionals charged in illegal prescription opioid crackdown -0.75 54.75
Elizabeth Warren’s pledge to protect public lands aims to appeal to Western voters -1.33 43
Officials announce new measures to fight New York measles outbreak -0.67 54
‘It’s all a lie,’ Russian billionaire Deripaska says of U.S. accusations in Mueller probe -1.75 51.25
Tribes denounce North Dakota ID law in congressional hearing -0.75 47
Former Interior Secretary Zinke hired by gold mining firm 0 49
What to look for in the Mueller report -3.75 41.5
Read new Michael Cohen court documents that may offer clues on Mueller probe -2.67 48
WATCH: Elizabeth Warren supports elimination of electoral college -4.67 47.67


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