168: Henry and the Iceplace

Explanation
In the original, Henry's mother agrees that watching a fire is better than watching television. Here, she's noticing that the fire is at a complete standstill, by contrast to its flickery nature. A comparison of the two panels proves this to be the case.

The author writes:
Sometimes, copying a panel down to its smallest detail leads to some oddities.

Original Henry strip: 1986-12-20.

Transcript
Henry's mother: Henry is right... Henry's mother: ...That fire is... Henry's mother: ...completely... Henry's mother: ...frozen!