I am using a Shaw DCX3400-M HD cable box with my Shaw 1056B03 remote on a Hitachi 42HDT79 TV. Just started to notice when I turn off the cable box( all lights go off cable box , picture goes off TV ) but sound is still comming through the TV. This will continue for 10-15 seconds till the TV goes into its power saving mode, which the TV switches to when there is no picture signal received by the TV.
I went through the cable box setup under menu the menu options and cannot see any setting that may have been changed. Is there something I am missing, as I said, I just have noticed this in the past few days?