Here are super low noise amplifiers. kitztech.com
http://www.kitztech.com/ has a noise figure of 1 dB or less. And researchcomms.com
http://www.researchcomms.com/ has a noise figure of .4 dB or less. Noise figures are important in poor reception areas because 'noise' blocks out part of the signal. I have 45 years in broadcast television transmission and reception and I know a lot of ways to receive television.