The Most Extreme is a show on Animal Planet.

Quotes from known episodes

Announcer: Earth is a planet of extremes... Extreme places, and extreme animals. But some animals are more extreme than others. Join us as we count down to find the most unusual, and the most extraordinary, on Animal Planet's The Most Extreme.
(Said at the beginning of every episode.)

Narrator: All it cares about after maturity is sex.
(From the Most Extreme Builders)

Narrator: That's why, when it comes to biting, the cookie-cutter shark really is The Most Extreme! (from the Most Extreme Biters)

Narrator: The Cuckoo Capone really are THE MOST EXTREME!" (from Most Extreme Cheats)

Green Computer Animated man: (Sticking to window) Huh? Whoa! (Falls off building) (From the Most Extreme Inventors)

Narrator: That's why the cookie-cutter shark really is--The Best of the Best. (From The Most Extreme: Best of the Best)