software available.. providing you can write the SQL to extract the data you require then yes.
TV on its own no, at least not without some messing around
however what you could do is attach a simple cheap computer to the back of a TV and feed the TV from that computer (some all,ow HDMI inputs some RGB [VGA 15 pin D plug]). you coudl then get the cheap computer to act as a web client displaying the data in whatever sixed TV you want.
Im thinking of the something like the ACER Revo
Google
however if you are going down that route you might as well make the web page available to the sales team directly on their computers.
Ive used this approach in an educational context where the institution wanted 4 (as it turned out 8 large screen panels in their main entrance. they wanted the ability to change the display at will, so sometimes its a routine 'advertising' eg these are the courses we do..., sometimes they wanted one or more screens to act as a notice board eg "blah di blah University welcomes blah di blah to the hot de hoot conference"
sometimes they act as information swtichboard eg "go to room XXX for blah di blah"
lastly they panels can be activated using a fire / emergency evacuation and so on... all done through web pages, so there is minimal client programming, no need to access the panels regularly, virtually all administration is done remotely.
the only thing we can't do is to 'chain' the displays ie a scrolling message form one screen to the next without resorting to some development on the display computers
of course if you have a spare computer sittign around ytou coudl save the cost of the computer and just plug it directly into a suitable TV and get the same effect.
to go down this route
you'd need a web server capable of sendign out the data a suitable front end language to create the web page(s)
effectively you'd have something similar to the 1970's era of Teletext
Teletext
although the quality of the image should be much much better.