dpr 99
1080i is what you get for ota in fact 95 percent of what you watch sat, cable, whatever although maybe packaged at 1080p is at best a cross conversion of 720p or a "repackaging" of 1080i
this isn't to say that some shows are not shot in 1080p but its still not the standard for content creation yet so i wouldn't worry about it too much.
blue ray, some video games etc can all give you true 1080p same with some computer sources.
i would recommend a media server, you don't need a powerful box and if you have any computer knowledge at all its easy to setup with a tuner card or multiple ... you can get "dvr" netflix etc and it can be made wife friendly with programs like windows media center and a host of others.
and finally so you know WJZY is now fox and WCCB carries CW programs.
http://en.wikipedia.org/wiki/WJZY