Audio problem: Before Abed returns to the dance, he says to Rachel "Okay, bye, " and even though it is in a profile, his mouth movements don't match the words as it looks like he says more than that. (00:14:55)
Economics of Marine Biology - S4-E7
Audio problem: After Abed's fraternity runs loose, making Archie spill soda on his shoes, he expresses his dismay loudly, with commotion of the frat still being heard. Suddenly there is a very noticeable and abrupt audio cut right when Annie says her next line. (00:10:45)
Economics of Marine Biology - S4-E7
Audio problem: Coach Chapman makes his way up to the white board to introduce himself and the class topic. We hear him say "Welcome to P.E.E." but his mouth doesn't open at all.
Answer: It was part of the plot that when the boiled yam was dropped it looked like it was stepped on (which it never was). So there was no way to tell the difference between the flesh being soft because it was boiled or because it was stepped on (in the show that is, I don't know if one could tell the difference in real life). Plus, the rest of the yam wasn't boiled, so there was no evidence the yam was sitting in boiling water.
Bishop73