Comment Re:how does autoskipping commercials work? (Score 0) 418
There are probably a lot of ways to detect commercials. ReplayTV doesn't go by time. Think about what changes when a commercial comes on. The picture, the overscan area, the audio. All it'd have to do is watch for the audio to drastically change, like stereo to mono or cut in and out, the overscan area to drop in and out (closed captioning, XDS), and screen blanking. If two out of three happen, a commercial probably started.