this is a popular question.so here is a sticky.
globcast known as GC for sort.
it is a provider like DN and B3V
it is located at 97W galaxy 25
you need a 30" dish minimum, tho a 33" or larger dish is recommended and a linear lnb (not circular like DN/BEV use)
its mostly internationals.
here is the channel lineup.(scroll down to KU band)
Galaxy 25 at 97.0°W - LyngSat
as you can see there are many FTA/"free to air" also known as "in the
clear",or "open" channels there,so any fta receiver can get these.as noted by
the small box with the "F" in it.(free to air)
fta receivers are made for these,and why they are 100% legal.
there are also some encrypted in nagravision.
so if you see a GC fix,you know what it's for.