The recommendation of the larger Winegard HD7696P or even the slightly larger HD7698P is not overkill IMO. Especially if you would like to see one or more of the low powered signals. The larger antenna would provide greater fade margin. A larger antenna is also indicated, given the potential for some foliage attenuation due to nearby trees.
Having said that, the RCA ANT-751 will certainly be capable, and is a good suggestion if you are only interested in the major network specified in your first post.
Here's an example of potentially interesting programing,
WSWF is an America One affiliate.
http://www.americaone.com/
http://www.rabbitears.info/