I'm a recent convert to OTA. I live in Oak Park, a suburb of Chicago, and have a question about ABC. There are two 7-1 channels: WLSDT and WLSSTA. I assume these are two transmitters, but the weird thing is only one works at any given time. Example: the week before the Academy Awards WLSDT came in scrambled, and WLSSTA came in fine. However, the day of the Academy Awards WLSDT was suddenly clear and WLSSTA was scrambled. Since then it's switched back and forth two more times. Does anyone know or have a theory as to why this is happening and, if so, how can it be fixed? I have the antenna (a Mohu Leaf) connected to a Tivo. Since I'm in a condo complex I can't have an exterior antenna, and this one actually works very well minus this one issue. So if there is no way of resolving the signal strength issue of these two channels, and if I have a season pass with Tivo for a show on ABC, will it record both channels, or will it pick the one with the strongest signal?