Recommendation Obligation
The obligation one has to watch a particular TV series or movie after it was recommended by a friend, colleague or family member.

The victim of Recommendation Obligation feels a sense of guilt and anxiety which is only relieved by watching the entire movie or TV series.

NOTE: Social etiquette dictates that one must suffix any recommendation with "but don't feel obliged to watch it if you're busy or if it's not your thing or whatever".
Ohhh, I'm so tired, my buddy told me to watch "Gossip Girl" so I felt Recommendation Obligation and watched every season, even though I hated it.