Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Visually stunning, but narration put me to sleep.

I have nothing against Oprah. I was very excited to watch the Premier of the Life Series on the Discovery Channel. However, once Oprah started talking you could tell she was reading off a script. Her voice sounded so monotone that within 20 mins I actually fell asleep. The visuals were stunning but I could not stay awake through her narration, it was like a sleeping pill. I'll be picking up Attenborough's version and hopefully it'll be more exciting.