I have exactly the same RCA TV in the bedroom with an Antenna Direct unit setting on the dresser inside the house. The antenna looks like a Black plastic figure 8 About 18 inches high with a wire grid behind it. I get great reception on the TV stations that are about 30 miles away. There is one spot where the house is between the antenna and the station and it is Iffy.
Wind, snow and leaves do make a diference.
Overall though, reception is good enough that I will not put up an outside antenna.
Sorry, I can not remember the name of the antenna and it is not on the antenna.