I purchased a set of digital TV Ears for use on my flat panel TV. I couldn’t get them to work so I called for help. My help technician asked me to read the notations on the set, As soon as I said Dolby Digital he said the TV ears won’t work with Dolby Digital . The good part is the company is managed by good people an they gave me all my money back. I was very disappointed as I have not found a replacement yet.