This is a discussion on What is the best indoor antenna? within the DTV | HDTV Reception and Antenna Discussion forums, part of the Over-the-Air (Antenna TV) category.
Whats your location (city, rural) and what are you using now (amplified/ unamplified?)The more info you give the more these people can help!
Yes we need your TVFool and the building materials of your location, siding, roofing, etc.
The real question is what is the best antenna for my situation.....not what is the best antenna.
Please tell us why you can't use an outdoor antenna. Depending on your situation, you may be able to use an outdoor antenna per a Federal Government ruling you can read about here: FCC Fact Sheet on Placement of Antennas In many cases the Federal Law supercedes condo 'regulations', neighborhood covenents and the like.