I have a Hr20-700 and recently it has stopped working with my Sharp Aquos--(just verified all outputs work with Toshiba). I have tried all 3 hdmi inputs with different cords and component on both inputs and I don't get picture. The Sharp does work with if I run the component to the Slingbox and use the output of slingbox to the TV. All other equipment, Tivo hd pro, Sony BlueRay work on every input of the TV. Why not the HR20? I have tried resetting the unit and restarted it several times. I have tried all the output resolutions using the FORMAT buttong and the RES button on the front panel. The only output this TV can see is the composite. Any ideas?