Very good question. Assuming we are talking about a national cable launch, for a short form campaign (:60, 1:20) a minimum of $30-40k should be tested over 2 weeks. This will give us an idea of how the marlket is responding to the messaging. With long form about the same amount covering at least 2 weekends. Keep in mind I woudl also allocate $5k per month minimum for a corresponding digital test. However, testing is not necesarily done after we get a "read", there could be several more tests on differemnt varibales such as offers, price points, creative etc. to determine which gives us the best ROI before rolling out.