I don't know how true it is, but I heard that - TV manufacturers are often (always?) members of the HDMI consortium, meaning they financially profit from each

I don't know how true it is, but I heard that - TV manufacturers are often (always?) members of the HDMI consortium, meaning they financially profit from each device that has an HDMI port. - Manufacturers of devices with HDMI ports are heavily discouraged from also including competing ports like DP.