How to identify CTC tea?
Because of the process of producing CTC teas, they leaves have a hard, balled, granular appearance like the ones in the picture you linked.  The primary place to find such tea leaves is inside tea bags; pick up some Lipton sometime.  I've also found that orange pekoe teas tend to be frequently processed this way, even in higher grades.

This comparison of Sri Lanka Pekoe Grades lays it out more distinctly than anywhere else I can find; you can see there the same leaves, both processed orthodox, and via CTC.  The CTC has a "gravel" appearance that's hard to mistake for anything else.

Contrary to Harney &amp; Sons marketing copy, CTC teas are not generally considered superior to Orthodox teas, but instead inferior.  The primary advantage of CTC teas for the drinker is a faster steep to produce a dark cup of tea (and hence why they are suited to tea bags).  However, the process is expected to prevent tasting any of the subtler flavors in a tea blend.