I currently have a Samsung SIR T151 and a Channel Master Advantage 3019 with a preamp and a rotor mounted on top of a two story roof. I was wondering if anyone noticed substantial improvement in reception by upgrading their set top box or if any one brand is better than another. I'm always trying to think of ways to get every last channel possible! There are some channels that are near me that I am only able to get on certain days and/or certain times of the year. Wondering if a new box would help.