I have a Tandy (Radio Shack) Mini-State. It looks like a flying saucer, 22'' dia 6'' thick. The antenna elements are inside a plastic case. It is very unobtrusive. I get HDTV 50 miles away as well as analog. It has a small built in rotor. It has a amp. It mounts on a 1-1/2" dia pipe. I have mine mounted on a plumbing vent pipe on the roof (left a gap for the vent). It rotates 360 with a small hard wired operator (there is also an IR remote operator model). I ran the coax and rotor cable w/ no diplexers. I tried the TV55, Silver Sensor, TV44, and the Mini-State works best because of the rotor. I'm also going to try the GE MaX 6' (its like the TV55 only much smaller in dia, twice as long, and can be painted to match its surroundings). I've come to the conclusion that since the stations' transmitting antennas at my location are so diverse in their direction from my receiving antenna, a rotor is a must.