Can I improve the quality of my TV picture?
I have a 27" iMac with 3.1 GHz Intel Core i5, 12 GB 1333 MHz DDR3, AMD Radeon HD 6970M 1024 MB. Picture quality is good for everything except TV. Whether using Sky Go, TV Catchup, iPlayer or whatever, the picture quality is very poor, especially when on full screen.
Is there anything I can do to fix this, in the way of settings perhaps? I have BT Infinity broadband, so line speed should not be an issue.
Thanks, James