Dual Screening

The art of watching a TV show whilst simultaneously tweeting constantly about it. Dual Screeners tend to tweet descriptive statements more frequently than opinions/reviews.
Some of the more talented Dual Screeners make following their commentary more entertaining than watching the real thing.

Person 1: Are you watching Masterchef tonight?
Person 2: Nah, I follow this guy on twitter who'll be dual screening it - I'll just read that.