This video describes how you may connect a Nokia phone to your TV and watch photos and videos in High Definition.
Nokia also has a free app called Nokia Big Screen that you may use to display photo slideshows, videos or listen to music on your High-definition TV. The Big Screen App is available for Nokia phones that have an HDMI output port like the N8 and Nokia E7.
When you connect the phone to your TV using the HDMI cable, the phone turns itself into a touch pad allowing you easily control photos and videos from the couch.
Here’s a video demo of Nokia Big Screen.