And specify for color tvs, too.

Antennas are application-specific devices, and you need to find one that will work at the address you plan on using it. We serve Chicago and some far-flung suburbs, and different antennas work at different homes. We've had bad results with the RV/Terk/batwing style antennas, even when we're only a few miles from the towers. In the burbs I've used a big high gain Winegard with great results, but roof mounted and not inside the attic. Attic mounted antennas are hit & miss, and we have a specific exlusion in our contract for this.