One of the main attractions is non-linear broadcasting, i.e. to watch missed programmes (‘catch-up TV’). The HbbTV specification is based on existing standards and web technologies including OIPF (Open IPTV Forum), CEA, DVB and W3C. The standard provides the features and functionality required to deliver feature rich broadcast and internet services. Utilizing standard internet technology, it enables rapid application development. It defines minimum requirements simplifying the implementation in devices and leaving room for differentiation - this limits the investment required by CE manufacturers to build compliant devices.