explainer · HACKER NEWS RECOMMENDATION
Why is TV 29.97 frames per second?
Stand-up Maths · 4 HN recommenders · 4 recommendation months
Recommended by 4 Hacker News commenters across 4 months (2016–2025).
SignalTube analysis
Among 25 other explainer videos tagged Audio & video engineering, the mean is 2.6 distinct HN recommenders. This video has 4 distinct HN recommenders, about 1.6× that mean. Recommendations span 4 distinct months; the peer average is 2.4 months. This is a data-derived comparison, not a human review or quality rating.
80% of its 5 labeled comments are marked as recommendations or strong recommendations. HN mention years are 2016–2025; those years describe discussion history, not upload date. Its verified runtime is 14 minutes 27 seconds. YouTube lists its publication date as 2016-10-03.
- Channel / speaker
- Stand-up Maths
- Verified runtime
- 14m 27s
- YouTube upload date
- 2016-10-03
- Hacker News mention years
- 2016–2025
SAME TOPIC AND FORMAT
Compare with related videos
The comparison cohort uses other explainer videos in Audio & video engineering. “Shared recommenders” counts HN users who recommended both videos in the source graph.
| Video | HN recommenders | Recommendation months | Positive label share | Shared recommenders | Runtime | Upload date |
|---|---|---|---|---|---|---|
| Why is TV 29.97 frames per second?Current video | 4 | 4 | 80% | — | 14m 27s | 2016-10-03 |
| D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org)explainer · FL Studio | 15 | 13 | 75% | No recorded overlap | 23m 53s | 2013-03-02 |
| Cassettes - better than you don't rememberexplainer · Techmoan | 5 | 5 | 67% | No recorded overlap | 22m 46s | 2016-02-01 |
| Gaslighting Your Fans w/ Dolby ATMOS™explainer · Benn Jordan | 4 | 3 | 80% | No recorded overlap | 24m 13s | 2023-06-05 |
THREE SOURCE-BASED CONTEXT POINTS
Why Hacker News recommends it
Each note combines the dataset’s stance label and short rationale; comment bodies are not reproduced. Open the HN source for the original discussion.
The archive classifies this as a recommendation in “The biggest CRT ever made: Sony's PVM-4300”. Its short rationale: TV spectrum allocation, NTSC, PAL and origin of 29.97 fps.
The archive classifies this as a strong recommendation in “My Eight-Year Quest to Digitize 45 Videotapes”. Its short rationale: Matt Parker's explanation of why NTSC runs at 29.97fps.
The archive classifies this as a recommendation in “Color Television: NTSC Tutorials”. Its short rationale: Explains NTSC's 29.97 frame rate.