This interactive plush toys are aimed at babies to become more active when watching TV.

The plush toy are synchronized with scenes shown on a DVD movie. A signal triggers the plush toy to start giggling, singing, and flashing its integrated light.
The DVD plush toy comes as lamb, dog or cow. The plush animal have a somewhat weird look, a hint of Teletubby.
Anyway, I do not have a child, so I am not sure if this is a great toy for 3-12month old kids. Are they even supposed to watch TV?
The toy sells for $49.95 on Hammacher and Schlemmer.
Update:
I received some interesting feedback about the toy by Barry Albert Bussewitz, an Instructor in Early Childhood Education and Human Development at the Solano Community College in Fairfield, CA: "Babies and young children require the neurological functioning of sustained human interaction to grow their brains so they can read and respond to cues from other humans and regulate emotions and impulses. The plush toys you describe look like expensive junk food for the brain. They seem likely to move parents in the direction of resorting to more mechanical or robotic babysitting, rather than the talking, play and cuddling that youngsters thrive on. "

I was suspecting that this toy is not unproblematic. I also heard in the news, that a new study says that the love of parents in the early month defines how well the brain develops. More love means more smarts.
Now this plush toy is cute for sure.