What is and how useful is a CEA-909 "smart antenna"?

Do a search on: RCA Smart Antenna, ANT2000. This is an indoor antenna. The cost of the antenna is about $65 a Walmart On-Line. It automatically optimizes the signal - you don't "point it" - it determines the direction of the signal, and tunes to the signal (filtering out signals from other directions). Unfortunately, this only works with TV's and stand-alone tuners that have the CEA909 port (because it requires feedback from the device in order to do the optimization). Where I live (Pittsburgh), small indoor amplified antennas (like the Samsung Axession) work very well - but do require "pointing". A flat smart antenna (like the RCA model) would be useful (and less intrusive). I've been viewing HDTV almost since it's inception in the US - so most of the receivers I have are older and they all lack the CEA909 port. However, with digital TV, the improvements in picture quality and reception are so great (even in the hilly terrain of Pittsburgh), you can't imagine ever watching analog TV. I get perfect reception of stations that either had no reception or had very poor reception. http://www.walmart.com/catalog/product.do?product_id=10096792#Item+Description

Thanks so much, Rabil! I will strongly consider!

Hey, Rabil – do you think networks will add more channels? I have to confess that I like the RetroTV channel so I can watch re-runs of Magnum PI and Rockford Files…