We want to install a digital signal processor to improve the sound quality of a TV. We would also like to improve the picture quality. Please guide us how.
To answer your questions,First off, what is the make and model of your TV? How are you connected to your TV? What is your audio equipment? What sort of content are you viewing? If you have content that is bad in quality, both audio and video wise, then there's no point in dropping money on signal processors or their ilk that are advertised to give you a better experience.