All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
It is permissible for you to be a partner with your friend in a project of producing and directing permissible TV works, in such a manner that you provide the capital money and your partner does the work. The profit is then divided according to the agreement between both of you on condition that the profit should not be a known guaranteed amount; rather, it must be a known percentage.
The fact that your friend earns a known amount and, therefore, the percentage of profit is known does not affect the permissibility as long as he is not held liable to pay this amount to you and the contract is not conducted on this basis.
If there is a loss in the capital money of the project, you are the one who incurs it as long as your friend is not negligent and does not breach the contract.
For more benefit, please refer to Fataawa 82600 and 88633.
Allaah Knows best.