Poor picture? what have you got it connect to?
only 2 out of 7 players I`ve had rank at the top for all rounders and thats the Wharfedale and Aiwa 370!
But I can only speak for the 750 not the 750S. My 750 has a very very good picture, but it`s rather noisy.
If you want a bad picture try a Daewoo/Scan, Ariston, JVC, Matsui then have a look at your Wharfedale again and tell me what you think?