[old_tv_nut]

All the desired signals appear to be about 40 miles SE, right? At that distance, an indoor antenna will not be in overload and very likely will need to be amplified. So, dig out the box that has a signal strength meter and see what it says. There may also be too much multipath, but there's no way to tell from the simple lack of reception. It's also possible that the built-in tuner in the RCA TV is not as good as the best adaptor boxes (Zenith or Insignia).