The overall level of malicious and low-quality programmatic impressions is down vs. 2018, and in-banner video ads have plummeted over the past eight quarters, reports Confiant.

Publishers report that programmatic -- and header bidding in particular -- are key as they push to optimize their video advertising across all platforms. Mobile and CTV/OTT are viewed as the fastest-growth opportunities, despite app development challenges.

Millennials -- particularly women -- are heavy Instagram users, but like other age groups, Facebook is their most-used platform. Seventy percent use Facebook daily vs. 70% for Instagram and 66% for YouTube. Just 28% use TikTok daily.

Streaming hours were up 58% globally and up 63% in the Americas in the period, and 24% of all streaming time took place on mobile devices, reports Conviva.