> With linear TV everything is prepared in advance. When they sell an ad slot they know what program they will be showing at the time. There's plenty of time to

> With linear TV everything is prepared in advance. When they sell an ad slot they know what program they will be showing at the time. There's plenty of time to match the ad volume to the program volume, which I suspect in 2010 could not be reasonably automated. Not really. There's a lot of live programming. Ad campaigns may be cancelled and replaced close to the time of airing. Local stations and cable systems preempt national ads and insert their own ads at times. The way this was resolved was not by tuning ads to the content they interrupt, it was by setting standard audio levels for all programming and tuning the ads to fit that standard.