Well, I certainly wasn't saying that because that's their slogan, it really is like preschool on tv! I brought that up b/c the OP asked for an overall picture of what the channel was. I didn't want her to not realize it is a channel for preschoolers and think it was an educational channel for kids of all ages.
Besides, I don't think preschool is all that great anyway! Some are better than others.
There is an argument to be made for the "program-length commercial" thing. BUT, as true as it may be:
1. My kids NEVER pointed at the screen and said, "I WANT THAT!" (They were, on the other hand, inordinately excited about their new panties Grandma bought them because Dora was on them.) Traditional commercials can turn your home into a constant, "I want this, I need that." I know because I grew up in a house like that! So when I was using tv a lot, it was nice to have an option with no "commercials." And my kids weren't exposed to too much in the way of character merchandise because we don't shop much. (If you don't take them into stores a lot, how do they even know these things are available for sale?) For a family that watched about an hour a day of Noggin for 3 years, I can't think of anything we own with a character on it except for those panties.
2. Interrupting the narrative of a show for traditional commercials is thought to be disrupting to brain development and linked to ADD and other problems. That's why after much research they retooled Sesame Street so the main narrative was told all at once rather than having all those "breaks" in which cartoons counted to ten etc.
This whole thread might be better off in the television forum. I maintain that although I prefer the tv off, if it were to be on Noggin would be my first choice. Better than PBS, Discovery Kids, Disney channel, etc.
This could be neither here nor there, but when we went from moderate to very little tv two months ago, it was a pretty smooth transition. I wonder if it had something to do with the quality of tv they were watching.