GISTIL
Sign in

Measured channelScience

PBS Space Time

Open on YouTube ↗

70 Gistil Score · median of 23 measured videos

Across 23 measured videos from PBS Space Time, the median Gistil Score is 70 out of 100, and 8 of them came out worth watching outright. The median filler share is 35%. In a typical video the value starts at 0:52.

Videos measured
23
Filler · median
35%
Value starts
0:52

Last measured 2 Sep 2026

Start here

The three densest videos we have measured on this channel, each with the minute its value starts.

  1. 01

    What Physics Teachers Get Wrong About Tides! | Space Time | PBS Digital Studios

    Worth skimming 15:21

    Density
    76
    Padding
    37%
    Useful from
    2:31

    A rare case of a science channel correcting a misconception that even professional physicists get wrong — dense, rigorous, and genuinely eye-opening.

    value from 2:31 ↗

  2. 02

    General Relativity & Curved Spacetime Explained! | Space Time | PBS Digital Studios

    Worth it 8:53

    Density
    78
    Padding
    27%
    Useful from
    0:20

    A tightly argued, genuinely substantive explainer of why spacetime must be curved — PBS Space Time at its best.

    value from 0:20 ↗

  3. 03

    Mapping the Multiverse

    Worth it 17:41

    Density
    73
    Padding
    32%
    Useful from
    0:58

    A dense, rigorous walk through the Kerr black hole's Penrose diagram — real GR reasoning, not sci-fi hand-waving — undercut only by an unrelated Q&A tangent in the final third.

    value from 0:58 ↗

Questions

Is PBS Space Time worth watching?

Across the 23 videos we measured, the median Gistil Score is 70 out of 100, and 8 came out worth watching outright. The score measures how much of the runtime carries substance; it is our own measurement, not a YouTube metric.

What are the best PBS Space Time videos?

The three densest ones we have measured are listed above, each with the minute its value starts — so you can open one at the second it begins to pay off.

How honest are the titles on PBS Space Time?

Median title honesty across those videos is 88 out of 100 — how closely a title matches what the video actually delivers.

The Gistil Score is our own independent measurement of how much of a video's runtime carries substance. It is not a YouTube metric, not a public rating, and not the video's rating on YouTube. Gistil does not alter, download or cut any part of a video — the videos stay on YouTube and play there. Not affiliated with YouTube or Google.

How this is measured

Every number on this page comes from measuring the videos one at a time. How we measure.

All measured shelves