I've tried to search but could not find a specific answer. My OTA reception is fine when I use one TV. When I try to use a good 2 way splitter, the signal becomes much weaker, even when I don't hook up the second TV. Do I need a preamp? Can I buy a preamp/splitter in one unit or do I need both a preamp and a splitter? I have one cable coming into the house from the antenna and would like to split it into 4 once it's in the house. I have electric power at that location if needed. What is the best equipment to use to split my OTA signal into 4?