i use one. i have satellite but think its ridiculous to have to pay for public channels. so i switch inputs b/c i use S video for my satellite, not coax.
I tried the rabbit ears, but they aren't very good imho. what you want to do is find out where the tv. towers are, from where they broadcast. then, based on the distance to your house, go and buy a roof/attic antenna designed for that distance. i did that and I get really good reception. Put it in your attic so its out of sight. then, tweak it by one person being in the attic and the other person in front of the t.v. and talk on the cellphone. I think my antenna was like less than 50 bucks, but its clear, and no ugly rabbit ears.