Marriott GRE 2.0 is an earlier generation of Marriott’s Guest Room Entertainment platform designed to standardize in-room content delivery, branding, and guest interaction across properties. It established baseline requirements for compatible hospitality TVs, user interfaces, and content workflows. Hotels operating under GRE 2.0 must ensure their in-room technology meets Marriott’s specifications for display performance, content security, and system control to remain compliant with brand standards.