As Seen on TV HD-12 HD Clear Vision Ultra-Thin High Performance Indoor HDTV Antenna - Free Over The Air Digital TV Never pay hundreds of dollars for cable or satellite TV again! Innovative flat, ultra-thin indoor HDTV antenna that measures 11 5/8" x 3" HD Clear Vision receives crystal clear, 1080p High Definition TV Multi-directional, pull in signals from all directions Easy to install - just attach the HDTV antenna to any window, wall, door, or flat surface, then plug the antenna into your TV and scan for channels to enjoy