South Park (1997– )
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Roger Ebert Should Lay Off the Fatty Foods 

The boys investigate a mysterious conspiracy centered around the South Park Planetarium. Meanwhile, Cartman auditions for a TV commercial.



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Episode cast overview:
Stan Marsh / Eric Cartman / Barnaby Jones / Mr. Garrison / Cheesy Poof Spokesman / Dr. Adams / Van Gelder / Mr. Mackey / Teenager #2 / Clyde / Bill / Fosse / Competition Contestant / Judge #1 / Tom the News Reader / Officer Barbrady / Lighting Technician (voice)
Kyle Broflovski / Kenny McCormick / Barnaby Jones' Accomplice / Missy / Tommy / Man at Laser Show / Teenager #2 / News Reporter / Fosse / TV Announcer (voice)
Mary Kay Bergman ...
Mrs. Crabtree / Nurse Gollum / Principal Victoria / Liane Cartman / Starving Daughter / Starving Mother / Grandma Cartman / Sheila Broflovski (voice) (as Mary Kay Bergman aka Shannen Cassidy)
Chef (voice)


The class takes a field trip to the planetarium, but Cartman sneaks off to try out for a Cheesy Poofs commercial. Though the kids are bored at first, they come back from the trip eager to go again. The reason for this sudden change is explained when Mr. Mackey mind-melds with a frightened little boy who stowed away in the school bus. As the planetarium's secret is being revealed, Cartman is overjoyed to learn that he has been selected to be a Cheesy Poof. Written by Jean-Marc Rocher <>

Plot Summary | Add Synopsis

Plot Keywords:

planetarium | death of child | See All (2) »


Animation | Comedy






Release Date:

2 September 1998 (USA)  »

Company Credits

Production Co:

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


Based off the Star Trek episode Dagger of the Mind. See more »


The Planetarium guy says that he cannot pronounce the "t" in planetarium, and pronounces it "plane'arium". However on the return trip, he says "planetarium" normally. See more »


Kenny: [haiku] Mmmf mmmf mmf mff mmf / Mmf mmmf mmf mff mmf mmmf mmf / Mmmf mff mff mmf mmf
[class laughs]
Stan: What's a discharge?
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References Night Court (1984) See more »


Written by Kenny Loggins and Dean Pitchford
Performed by Kenny Loggins
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Frequently Asked Questions

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User Reviews

Early South Park Classic -- Raw Satire And Dagger Of The Mind
24 June 2014 | by (Troy, NY) – See all my reviews

This episode is the best example of "raw" early SOUTH PARK. They start with a classic STAR TREK episode, "Dagger Of The Mind," and basically act out the entire plot, including legendary Star Trek bits like the "Vulcan Mind Meld." Stan and Kyle actually quote the episode word for word at the end, complete with Shatner diction. "Stan, can you imagine -- a mind -- drained by that thing." And Officer Barbrady, for no particular reason, is hypnotized into believing he is Elvis Presley, complete with the worst Elvis imitation ever. "Okay, man, okay. I'm the King! I'm the King!" Why this episode works so well is that it feels very homegrown and not at all put on -- just a bunch of guys goofing on a STAR TREK classic that every television watcher in America knows by heart.

If SOUTH PARK was the Beatles, this episode would be "Love Me Do."

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