TBS speeds up Seinfeld reruns by 7.5% to add more commercials.  This video shows you how they do it.

The upper-right is a live feed from a tuner card from a Seinfeld rerun. Lower-right is a digital recording from Fox Chicago about 10 years ago on the same hardware. TBS's broadcast gained 15 seconds in 3:22. This amounts to almost 2 full minutes for the entire episode.

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