Tivo Premier 'digital broadcast tv tuners' are trouble prone. The television transmitters signal strengths are Very Strong at your location. The flat surface of the loops of the C2 UHF antenna are directed at the the television transmitters at about 240 degree magnetic compass. (South West) The reflector screen behind the flat reception loops is a screen that reflects more signal to the reception loops. Here is how to aim antennas for future reference ,
http://www.kyes.com/antenna/pointing/pointing.html. Put the antenna in a window on the second floor that looks to the south west will get Very Good reception -> Many tv stations/channels. As a test connect a known to be good RG-6 coax cable to the antenna and run the coax DIRECT to a Tv that has a Digital Broadcast Tv Tuner. No splitters , No couplers , No Tivo , No nothing , just the coax Direct to the Tv with a Broadcast Digital Tv Tuner. The Tv Must Scan for Digital Broadcast Tv Channels some times called the 'Air Channels' or 'Antenna Channels' because the tv transmissions travel through the air from the transmitting antenna to the receiving antenna. Do Not scan for cable tv channels. How is the reception now??