I do this all the time, but not for 3 hours... maybe 30 mins to an hour

I like putting on the captions for YouTube videos... because YouTube is awful with captions

I once had to watch a documentary about lions in the Sahara desert, and I put on the captions because I was on an airplane and couldn't hear it well. It was pretty funny. Nearly every time they said "Sahara lion", it showed up as "sl*t lion".

"We watch closely as the sl*t lion prepares to catch her prey." HA