I get this issue from apple after upload my apps for review.
We found that your app includes features for streaming TV channels, the content of which may be copyrighted. The use of materials copyrighted by a third party requires documented evidence of your right to use such content in your application.
Please provide the documentary evidence showing your rights to use this content, to ensure compliance with the iOS Developer Program License Agreement. Once Legal has reviewed your documentation and confirms its validity, we will proceed with your app review. Be aware that while your iTunes Connect Application State is displayed as Rejected, it is not necessary to upload a new binary if you only need to address issues in your metadata.
Please remember that pursuant to your agreement with Apple, you represent and warrant that your application does not infringe the rights of another party, and that you are responsible for any liability to Apple because of a claim that your application infringes another party's rights.
I wanna ask how to upload the documentary evidence showing the rights?? Help me please.
Thanks.
I know this Question is Off topic but i had the Same Issue that's why sharing this. When i submitted my iOS App. As you are providing streaming for some channels on you iOS App then you need to share the agreements documents to Apple Review team. For share the documents you can use the itunesconnect like when Apple Review team wrote the details reason of rejection In Resolution Center you can scan the documents and send from there or you can write a email to Apple Review Team on appreview@apple.com or Contact through the Support Center and share all the details like your App ID , Rejection issue etc.
Once you share these Documents with Apple Review Team and after verification there is no need to submit another thing for App Update or something else.
Hope this will help you.
来源：https://stackoverflow.com/questions/16832356/copyright-issue-while-upload-apps-to-itunes