Pasadena-based rich media widget ad firm Interpolls has scored a win with Discovery Channel and its popular MythBusters show, the firm said earlier this week. Interpolls said that Discovery Channel will promote the upcoming season of "MythBusters" using its rich media widgets and "question-based" ad units. The widgets will ask questions about the show to engage users. Interpolls' ad widgets can be embedded into social networking and other web pages. Financial impact of the deal was not disclosed.