Wow- 66 channels just like that. I received an indoor antenna from a friend who was moving and thought it would work at their home and it didn't. The antenna was one that was like a flat piece of plastic you place on a window pane or the wall. It almost resembled a place mat. I received NO channels with it but could see some that were not there before but the were so snowy you couldn't watch anything. When they did come in, they froze and skipped so much I tossed it. So, I ordered this antenna. After a short assembly and installation I turned my TV on hoping to receive just a few channels. To my surprise, the TV started adding channels. It took so long I ended up going to eat and when I came home, boy was I surprised. 66 channels where I had none a couple of hours before. The channels come in just like they do on the TVs I have cable. Now there are a lot of stations I wont watch but it got me all the major networks and many locals that I didn't expect. There were even some cable channels that I didn't realize broadcast a signal to the public. I plan on purchasing more of these in the near future so all my TVs have them just in case the cable goes out in the future.