I have being trying out some of the television network web sites that have reruns of their shows online. Most of the interfaces are clunky and the video sometimes stalls, but I can get to many of the shows I want to see without being locked into watching them on a certain day at a certain time.
One of the sites is what CBS calls Innertube. We go there to watch Numb3rs, extras from the Amazing Race, and sometimes other stuff. A lot of times we will watch after the kids are in bed. We settle in and get the volume set so we can hear it without waking the kids and it is a fairly enjoyable experience. Then the first commercial comes on. Even though the commercial is very short the volume is well above that of the show. Even if the noise wasn't waking my kids it really takes away from the relaxing experience.
I have had a similar complaint about movies for a long time. The action sequences and music have the volume cranked up on them. I understand that an explosion might need to be louder than dialog for the effect, but the way they do it is excessive. I get the volume set and I either can't hear the dialog or I get blasted out by special effects.