It appears that HTML special codes work sometimes but not all the time.
Using FireFox, please look at http://tchristy.net/dev/subcategory.php?pr=jse&cat=Hose+%26+Garden+&subcat=Sprayers&expandable=0&subexpandable=2&subsubexpandable=23
Notice the top item in the Sprayers list has the special character 1/2.
Then click Read More on that item. Note that the large text at the top has 3 Actual Gallon Sprayer. Note the special char for 1/2 is missing.
View Source. The code ½ (for 1/2) is there but not displayed.