Eureka

This One Time at Space Camp... - S4-E18

Other mistake: When Holly and Fargo are playing Dungeons and Dragons, Holly rolls a d20 die and yells, "Critical hit!" but we can see the 20 on one of the upper sides of the die, meaning that she actually rolled a 2, which is most definitely not a critical hit (and actually nearly a critical miss).

Knever

In Too Deep - S5-E8

Plot hole: Carter is apparently just learning about Feynman's Day, which Allison explains as "Eureka's version of April Fool's Day." It's highly improbable that Carter could have lived in Eureka for five years and still be oblivious of this, especially given all of the hijinks that happen.

Knever

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Nathan Stark: Good job, Carter... Wow, that didn't even leave a bad taste in my mouth.
Marshall Jack Carter: Wait for it.
Nathan Stark: ...Oh, there it is.

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Chosen answer: He's still around, we've just not seen him lately, as scenes with Blake have been mainly at work, where Kevin wouldn't be.

Tailkinker

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