On an HD ready TV you can only get a maximum of 1280 x 720 for full HD 1080p or 1080i you need a Full HD TV go here for an explaination
What is HD Ready and Full HD
If you connect to the TV using HDMI from the PC as long as the audio is set to output to HDMI you should get sound. If your graphics card does not support sound over HDMI then you will have to connect up using the analogue out from your PC sound card to the TV. The same applies whether it is the iplayer or any other video player you are getting to play from the PC to TV.
Edited by deleted (Mon 05-Dec-11 21:37:55)