To get the international competition schedule, check the national fencing website. I don't know the URL of the American or British ones, but for Canada
http://www.fencing.ca/ You can choose to view the site in either French or English. Once there, click on the members area. Upcoming competitons are listed there somewhere.
I'm pretty sure the FIE site lists this as well. If lucky, there may be some in your area that you can watch live. I'm going to see the WE World Cup in Tauberbischofscheim, Germany at the end of Feb! I can't wait!
As to whether or not they'll be on tv, I can't help, but these sites should at least give you somewhere to start!