Design an incrementality study for CTV to measure causal lift on [PrimaryKPI] over [Timeframe]. Propose geo-matched markets [GeoMarkets] with synthetic controls or PSA/holdout methods. Define sample size, minimum detectable effect, and power. Specify exposure logging, clean-room joins, and outcome measurement windows aligned to [AttributionModel]. Include plans for bias checks (selection, seasonality), pre-trend tests, and a fail-fast read cadence. Output format: (1) Experiment charter; (2) Randomization and eligibility criteria; (3) Readout template with lift, confidence intervals, and cost per incremental outcome; (4) Decision rules and next steps if [ConfidenceLevel] is not met. [/Notes]