For Marketers, TV Sets Are an Invaluable Pair of Eyes

For Marketers, TV Sets Are an Invaluable Pair of Eyes

2/25 - Ms. Milz, 48, who lives with her husband and three children in Chicago, had agreed to be a panelist for a company called TVision Insights, which monitored her viewing habits — and whether her eyes flicked down to her phone during the commercials, whether she was smiling or frowning.