After months of sporadic searching, I finally found an easy, inexpensive way to stream sports scores and news to an LED ticker display. I know there have been a few looking for the same thing from time to time, so I figured this would probably be useful. Best part is no subscription fees and low cost.
First, find a BetaBrite, Alpha, or ProLite LED display (used is fine - I have a lightly used 48 inch ProLite TruColor XP I found on ebay for only about $80).
Next, depending on what sign you get, you will either need a long USB cable or a combination of DB9 cable/USB converter for connection to a computer running the software.
Last, Install this cool software that can stream RSS data to the sign. I use this one: http://www.kitchi-rss.com/
its very easy to use and free for most of the features (unless you want to run kitchi in the background as a service).
Pictures and video of my setup coming soon