The best episode directed by Mark Ervin is "Leela's Homeworld", rated 8/10 from 36 user votes. It was "written by Kristin Gore". "Leela's Homeworld" aired on 2/17/2002 and is rated 0.2 point(s) higher than their second highest rated, "The Day the Earth Stood Stupid".
When Bender disposes nuclear waste in the sewers, the angry mutants drag him, Fry, and Leela down to the depths to be mutated. As they attempt to escape, Leela makes an incredible discovery about her true heritage, finally meeting her parents for the first time.
Director: Mark Ervin
Writer: Kristin Gore
Earth is invaded by super-intelligent flying brains, who sap the Earth's populace of their intelligence. Leela is taken to Nibbler's home planet Eternia, where the Nibblonians explain that only one human is immune to the brains' powers - Fry.
Director: Mark Ervin
Writer: Jeff Westbrook
Fry is reunited with his old girlfriend from the 20th Century, but she doesn't adapt to the 31st century as well as he has. Convincing Fry to return to the cryogenic chamber, they awaken in a barren wasteland and struggle to make a place for themselves.
Director: Mark Ervin
Writer: J. Stewart Burns
Bender fears that nobody will remember him after he dies, and sees his chance for immortality when the crew is enslaved on the planet Osiris 4. Posing as the planet's new pharaoh, Bender orders a humongous statue built in his honor, and quickly goes mad with power.
Director: Mark Ervin
Writer: Ron Weiner
Professor Farnsworth installs an empathy chip in Bender after the inconsiderate robot flushes Nibbler down the toilet. With his newfound emotions, a concerned Bender ventures into the mutant-infested sewers to rescue Leela's beloved pet.
Director: Mark Ervin
Writer: Patric M. Verrone
When Hermes takes a stress-relieving vacation, replacement bureaucrat Morgan Proctor becomes infatuated with Fry. Bender threatens to publicize their affair, but Morgan removes Bender's memory and hides it within the cavernous Central Bureaucracy.
Director: Mark Ervin
Writer: Bill Odenkirk
Scapegoated for the vandalism of drunken Isotopes fans, the children of Springfield wage war on the adults by broadcasting their secrets on the radio.
Director: Mark Ervin
Writer: Larry Doyle
A new mogul wins the hearts of the townspeople with a shower of cash. Jealous, Mr. Burns asks Homer to help make him a beloved billionaire too, and they hatch a plan to bring the Loch Ness Monster to Springfield.
Director: Mark Ervin
Writer: John Swartzwelder
Homer rents a Clint Eastwood movie and is dismayed to find it's a musical. Using clips from past episodes, the rest of the family reminds him about the many times he and other members of the family and town have broken into song and dance.
Director: Mark Ervin
Writer: Steve O'Donnell