Although only 1/2 way through the season, Deadliest Catch is still as fantastic as ever. They added a few boats and got rid of a couple others to keep it fresh. Lots of interesting stuff going on. Also, Dirty Jobs, another one of my favorites, is typical Dirty Jobs but since the jobs are always different, the material still fresh. Mike Rowe is just as goofy as ever. Lastly, Man VS Wild, is pretty good. They are going to do a "stranded on a deserted island" episode. I'm looking forward to that.
As you can see, aside from Penguins hockey (yes I've caught every game this year), I am also a Discovery Channel leach.