The 2020 US holiday season posted better-than-expected retail sales growth, as huge ecommerce gains added to a surprisingly positive performance for brick-and-mortar retail. The early outlook for the 2021 holiday season is solid despite major economic uncertainty ahead.

Advertisers have never been under more pressure to prove ROI. Bob Ivins, chief strategy officer at cross-platform TV measurement firm TVSquared, joins eMarketer principal analyst at Insider Intelligence Nicole Perrin to discuss the remaining deficits in linear TV ad measurement, why it's important to standardize metrics and definitions across traditional and digital TV and video, and why advertisers need to pay attention to the right metrics for their campaign objective.