Anyone know what this is for? Lately, I've noticed that many TV commercials end with a brief heartbeat sound after the picture fades. It's just a little "lub-dub." This seems to be especially common during court shows.
Is this like the "CBS bong" of the '70s or the little beeps on cable in the '80s that were supposed to signify when commercial breaks end?
Is this like the "CBS bong" of the '70s or the little beeps on cable in the '80s that were supposed to signify when commercial breaks end?