Voom installer installed a 24 in dish I live in south Louisiana (terrible rain issues) Voom stated they dont have a 30 inch dish. Anyway I have only had the entire voom service 2 weeks I am now getting a black bar on several channels it varies 1/2 inch to 2 inchs wide at the bottom of the screen This is happening on all 3 of my TVS Can anyone tell me what is wrong I am afraid to watch any of these show as I dont want a burn in