Next in Marketing spoke with Adam Gerber, Executive Director, US Investment Strategy · GroupM and Mike Fisher, VP, Advanced TV & Audio at Essence about how they discovered that many streaming services were running tons of ads even after people's TV sets are turned off. It turns out that brands could be wasting millions of dollars sending ads to devices that no one is watching, even as the CTV ad market explodes. It's a fascinating problem and one without a simple fix.