The Slingbox or competing products would need to be located in an area close to the station you are interested in viewing. None of these devices will make an antenna perform any differently. This means you would need to place one unit in or near Meridian, MS to receive WTOK and another in or near Gadsden, AL to receive WTJP. You can use TV Fool to investigate the signal strength at locations between those two transmitters, to see if there is a single location that would offer a usable signal from both stations.
Slingbox-PRO-HD includes a built-in tuner and provides a means to send TV images and sound over the internet. There is no distance limitation per se. An internet connection with high bandwidth is required for usable quality picture and sound. At a minimum, the internet connection at the Slingbox location needs to support upload speeds of 1.5 Mb/s. Performance at this rate would be comparable to what you can see using 'YouTube'. The Slingbox device can easily use more bandwidth, 10 to 20 Mb/s for HD viewing. Of course the viewing location must also have an internet connection with a corresponding amount of bandwidth in order to obtain acceptable performance.
Products from Silicondust such as the HDHomeRun-Tech can be located at a remote site, as can Hauppauge tuners. These products will also require sufficient internet connection speed for acceptable viewing. These products are designed to stream data in real time and so the internet connection would need to support a throughput as high as 20+ Mb/s for HD content.
There are Home Theater PC hardware and software combination's that lend themselves to remote controlled operation. These can be used in a 'record', 'download' then 'view' mode which will allow for HD quality viewing with internet connection speeds lower than that which would provide real time viewing in HD. A 1 hour show recorded at 10 Mb/s would take 12 to 16 hours to download over a DSL connections with up-links limited to 800 Kb/s.
All of these technologies generally depend on a PC for viewing at the viewers location. There are internet ready TV's on the market and 'internet appliances' that might do the job of the PC.
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