The TNA house shows that are running are prepaid house shows, meaning a local promoter is paying them a flat fee for the show. This is a good situation for TNA, they get to feel out the locations for running their own shows, without any risk on their parts.
As far as TNA allowing talent to appear on local cards, they technically are only contracted to TNA when needed. Therefore if TNA isnt running a show, or a promotional event the talent can go wherever they want. There are stipulations that the event cant harm the product, they blocked a Raven vs Sabu program last year by CZW saying that a feud was in the works for TV and didnt want DVD's of the event to get out and kill the story.
I find this understandable as they have invested alot of money into their product and wrestlers, and I think the workers generally understand as their paydays have went up. I used to book Chris Harris for $75 before TNA went on Fox Sports Net, afterwards he was $150, and I hear from other promoters he is asking $350 and getting it now.
