Have a question? Send us a text! In this episode, Tim Rowe sits down with Johnathan Barnes, Founder and CEO of Supply Monitor, to tackle one of Streaming TV advertising's biggest problems: waste. A recent Truthset report estimates that advertisers will waste $7.4 billion in the Connected TV market in 2026, roughly 40% of all open programmatic ad spend, because the audience data guiding those buys is only accurate 13% of the time. Johnathan Barnes breaks down where that waste comes from, how to fight it, and why media buyers need to take a more active role in protecting their spend. Key Takeaways Every Programmatic Impression Is a String of Data, and Every Hop Adds Risk When you buy CTV programmatically, you're not just buying an ad placement, you're buying a chain of data that passes through multiple intermediaries before it reaches your bidder. Each hop introduces the potential for fraud, loose ID bridging, or degraded signal quality. 2:35 – Why waste means different things to different people, and how intermediary hops create efficiency for some and fraud for others.3:23 – What ID bridging is and how probabilistic models attempt to connect disparate identity graphs across the ecosystem.AI Is Accelerating Both Sides of the Fraud Fight AI has made it dramatically easier to detect and filter fraudulent or low-quality supply in real time, but it's also made fraudsters faster and more sophisticated. The organizations winning are the ones actively using AI to monitor supply paths, unify siloed data sets, and action against anomalies. Those that aren't are falling further behind. 7:23 – How AI serves as both weapon and shield in the fight against ad fraud.9:21 – Why bringing together data from your DSP, GA4, and third-party analytics platforms into a single view is now possible and essential.The Best CTV Buyers Go Direct, Ask Hard Questions, and Curate Their Supply Johnathan Barnes outlines a three-part playbook for any team buying connected TV. First, go direct or programmatic direct whenever possible to skip unnecessary intermediary hops. Second, ask your DSP and SSP partners specific questions about how they vet resellers and maintain supply chain health. Third, invest in curation and supply-side decisioning to control what inventory actually reaches your bidder, whether through a third-party curation service or deeper partnerships with your SSPs. 10:24 – Why CTV resembles the mobile app environment and what that means for supply chain visibility.12:23 – The questions buyers should be asking SSPs like OpenX, Index, and Magnite about reseller vetting and supply chain integrity.13:19 – Why curation isn't a buzzword but an ongoing practice that requires active management.Media Buyers Should Get Hands-On with AI Tools Johnathan Barnes challenges media buyers to spend time with AI coding tools like Claude Code to build custom solutions, even without a technical background. 14:25 – How Johnathan Barnes, a non-technical founder, now writes code with AI tools that his product developers can ship.16:40 – Why invalid signal, not just invalid traffic, is the next frontier, and how political advertisers are especially vulnerable to waste. Connect with the Guest Connect with Jonathan Barnes on LinkedIn: Johnathan BarnesWebsite: www.supplymonitor.aiEmail: jb@supplymonitor.ai