In order to have an effective DRTV campaign, there are a few things to note when planning:
1) Anything less than a 5 to 1 markup between the cost of goods and the final product will likely be a loss.
2) Long form commercials tend to be best for a more complex and costly products. [...]

The effectiveness of a DRTV / Infomercial marketing campaign is based on the basic foundation: how does the actual ad look? Is the content and message effective and to the point?
Infomercial production is the production of a commercial television program or relatively long commercial segment offering consumer information related to the sponsor’s product or service.
Infomercial [...]