Q: iMac 27 Retina iTunes error

It seems recent content purchased on iTunes is HDCP protected,  the problem is my 27" iMac Retina with the very latest OSx with all updates gives me an error stating the content can only be played on a screen that is HDCP compliant.

Are you telling me that content I purchase from Apple,  on an expensive Apple iMac 27 Retina,   running Apple iTunes,  on Apple OSx is not complaint,   Really ??