Instruct: Classify Amazon reviews into positive or negative sentiment
Query: These are great!

While he is still young enough that he doesn't technically have a speech delay, I bought this and Baby Babble 2 for my son. We've had them since he was about 18 months, and he's nearly two now. He still doesn't talk, but he loves his Baby Babble DVDs. We tend to leave the television on for background noise during the day, but Baby Babble is just about the only program that will catch his attention and even be able to hold it for the whole length of the video. In addition, he's definitely picking up some of the simple sign language they use (hungry, tired, etc). While speech comprehension isn't the primary aim of this program, my son's comprehension seems to be greatly improved by watching these.