This may be caused by the incorrect code being used for the TV. Normally we could provide the codes for the remote based on the brand of the TV we're trying to address it to. Please visit this page for all the code for the remote categories by the brand of the TV:

http://www.dishnetwork.com/downloads/pdf/user_guides_and_manuals/Remote_Codes_Web_Page.pdf.

Although we try to provide the ability for control your TV with our remotes, we cannot guarantee that our remote will work for all TV's.

Phillip Chang
DISH Network Customer Service Representative