There are those of us who have decided not to watch much, if any, television anymore because networks are starting to go too far in ruining the viewing experience. It just keeps getting worse.
As recently as the early 1990's, you hardly ever saw station logos on the screen during programming. Sometimes a local station would plaster their logo up for a few seconds to let you know who you're watching; this is not very annoying and is even required by FCC law.
Then it started with cable networks in the late 1990's. Networks started displaying their logos more often, especially immediately after and before commercial breaks. Nobody complained.
Then the logos came on all the time. Some people complained because their projection televisions were burned in, but not enough. The logos became semitransparent and stayed. Now all stations, from small local stations to the big national networks, have them.
Of course, these days it's not just static logos. The Earth in the Discovery Channel logo rotates slowly. Logos for Nickelodeon and Cartoon Network morph periodically to advertise the networks' web sites. Logos sometimes morph into ads for other television programs. We may not see commercial ads during programming yet, but I wouldn't put it past the program directors to attempt this, especially if it's under the guise of "eliminating commercial breaks."
We all need to let the television networks know how we feel about this. If you have a favorite cable network that does this, you should dig up their contact information and drop them a note. Real, physical letters are more effective than E-mails. Phone calls work too, if you can get ahold of a real person.
Let's all try to do our part to keep television from becoming nothing but advertising twenty-four hours a day.