Manufacturers will have to install features currently only available as paid-for add-ons in top-of-the-range HDTV models if sales growth is to be sustained.
That is the conclusion of a report by research firm DisplaySearch which suggests that sales of HDTVs will peak in the next two or three years.
It goes on to say that sales will then fall unless manufacturers can add compelling features that consumers are willing to pay for.
Calvin Hsieh, the director of research at DisplaySearch, said internet connectivity, full 1080p resolution, PVR capabilities and upgraded HDMI port specifications need to become standard fare by next year.