If you really, really, really want WGN out of Chicago (not the superstation) in HD you can get it on Shaw Direct. It is on Anik F2, which you can receive in Tennessee. You will have to subscribe to a package that will run you about $50 per month, and get an address broker in Canada, you'll also gave to buy your own equipment and install it yourself. The equipment will probably run you around $400 or so. Just letting you know it CAN be done if you want it that bad. "Moving" to the Knoxville DMA will be easier and cheaper if you can live with WBXX.