Buy from Amazon : http://www.amazon.com/gp/product/B000M137FW?tag=wayofcats-20

Bi-Directional Cable-TV Amplifier HDTV Ready!

For use with most digital and analog cable applications including digital cable modems digital TV and Pay-Per-View
Compatible with TV antennas
Maximizes signals for long cable runs
Boosts signal by up to 10dB
HDTV Ready