I was wondering if anyone knew the difference between low cost tv antennas and high cost tv antennas. My roomate wants a good tv antenna with good reception, but i dunt kno which one to get. Is there any difference between the $80 antennas and the $30 antennas? also, what does "dB" refer to when talking about antennas. Some antennas have 15 dB and some have 45 dB. Any difference? thnx.