good evening . i try searching the forum on this topic & found some useful info but i did not find a clear response to my delima. i have a 32" samsung hd tv connect to my h20 dvrd box from directv. the hd channels are great 72,74 discovery, HDNET etc, etc (by the way is it me or does DISCOVERY HD looks better than all the other HD channels including ESPN??).anyway am not sure what happen but since last week all my channels (i am refering to the non HD channel )have BLACK BARS on the side of the screen i mean ALL THE CHANNELS!!.the HD channels are ok they show the way they are sopose to.i tried going through the TV setting to verify it's set to 16:9 ,tried zoom ,still have bars this is strange because i did not touch any setting on the dvr box or the TV. i even uplug the TV & the dvr box to see if it would reset but it was still the same. any suggestion would be helpful. i know i had read something in the AVS FORUM on this same issue or here but i can't remember it was a long time ago before i even purchase the samsung or order the HD DVR box. i needed to know more about HD programming this forum was really helpful in my decision to stick with DIRECTV & go HD.....any suggestion would be helpful (i keep thinking it's something simple)..thanks