Every week on eMarketer’s “Behind the Numbers” podcast, we take a few minutes to discuss some of the most intriguing headlines of the past seven days. This week, we're chatting about Apple's surprise revenue warning, Roku's move to sell video subscriptions, and bots everywhere.

Most digital display ads are now purchased programmatically in the US, but what’s next? We explore why digital audio, out-of-home and television are prime targets for programmatic buyers.

Today, more than four of every five US digital display ad dollars transact programmatically. This report looks at the trends driving programmatic ad spending to $68.87 billion by 2020, breaking it down by transaction type, format and device.

Advanced targeting on TV and cross-screen placement of video ads are hot advertising topics. This report examines their likely influence on deals conducted during the 2018-2019 TV Upfronts, Digital NewFronts and beyond

Digital video spending is growing on both ad-supported and subscription-based platforms, while TV ad spending will decrease for the first time since the Great Recession. Time spent on each of those mediums is following similar patterns.

US subscription-based video providers are growing their user bases and revenues as audiences move from traditional pay TV toward digital services they consider more affordable and flexible.