Deadliest Catch, Discovery Channel

In season 4, episodes 9 & 10 used CGI to show how ice build-up would prove hazardous to the Coast Guard helicopter if its deicing systems failed.
In season 5, CGI was used to illustrate the sinking Katmai deploying liferafts amidst battering waves.
In season 5, episode 8, CGI was used to show how a tarp would protect the Wizard's pots from freezing.
In season 6, episode 6, CGI was used to illustrate the grounding of a vessel in False Pass.