By Jason DamataBroadcasting & Cable

B&C has partnered with attention and conversion analytics company iSpot.tv to bring you a weekly chart we call Promo Mojo: Exclusive data showing the top five TV promos ranked by TV ad impressions. On the strength of 189.3 million TV ad impressions for promos leading up to its Sept. 5 premiere, FX’s American Horror Story: Cult takes our No. 1 spot.