Thanks for the model numbers. A quick online search for the manuals leaves me understanding that the Panasonic was built in about 2003, before the FCC mandated that a digital tuner be included. You'll need a converter box to make use of the Panasonic set.
The Emerson manual (
http://funaiport.com/download/downlo...&brand=Emerson ) indicates you have an ATSC (the digital standard for over-the-air broadcasting) capable set. So no converter should be needed. You will need to go through the setup procedure to set the tuner to the correct mode though. Most tuners default to 'cable' mode which is incomparable with the signal standard used for over-the-air broadcasting, this may well explain why you have yet to see any signal.
The two cables from the satellite dish provide separate connections for the horizontally polarized and vertically polarized signals from the satellite. (There are actually two independent antennas sharing a common reflector dish.) In N. Amer., virtually all antennas designed for over the air TV use horizontal polarity only. So you only have one output from the TV antenna.
Big box home centers will usually stock the parts needed, such as signal splitters (performs the 'T' function), cable and connectors.
If you can not, or will not consider mounting any higher, you'll need a high performance antenna. Aimed at the main group of transmitters, (about 70° per a compass) a UHF only antenna such as an Antennas Direct DB8e or 91XG would be appropriate. Similar products from other vendors would be the Winegard HD9095P, and Channel Master CM-4228 and CM-3023. These antennas fall into two major categories, panel style and Yagi. The panel antenna is compact and often much easier to mount on a satellite 'J-pole'. The Yagi antenna is long and may not have adequate support if you are going to re-use the 'J-pole'... It will depend on the size and style of pole you have.
Given the weak signal levels, you'll likely need a preamplifier to overcome the losses caused by cable and splitters. An Antennas Direct PA-18 is a good option... Unless you are able to get more signal by mounting higher... (my preference).
I would still be curious to see what your 25' or 30' TV Fool Report looks like...