Tonight @ 6:30 in NY, they played The Simpsons episode "A Tale of Two Springfields". (The one where another area code is added and The Who make an appearance.)
It seemed that some of the shots were cut by a second or two, when the original versions of the visual jokes lingered a bit longer.
For example, when Homer shows his stomach was cut up by the badger, the original version, I recalled, had the shot lingering a bit more. At first, because that shot is actually visually grotesque, it appeared that the scene was edited for content. But then as the episode moved on, there seemed to be other shots that were also trimmed. There was a different feel to the timing.
If 30 seconds, (a second here - a second there), were clipped from an episode -that would 30 more seconds for an extra commercial.
The episode also seemed compressed/slightly sped up - but this point I am not sure of. I know that in some radio broadcasts, (i.e. talk radio), the lags in time are digitally compressed to make room for more commercial time.
Anyone know if this is being done with Simpsons reruns or other shows?