Homer vs. Patty and Selma/References

Cultural references

 * Barney smokes a cigar without removing the wrapper, and sees "Sgt. Pepper" (a reference to the album of The Beatles: "Sgt. Pepper's Lonely Hearts Club Band") growing out of Homer's back.

Goofs

 * It's strange how only Bart ended up in ballet, since a big group of children were waiting in line for other sports before there were no places left.
 * Moe sniffs a cigar before unwrapping it, before telling Barney he needs to unwrap the cigar before smoking.
 * Selma can't smell - so she can't say she has a smell she can't live without.
 * Homer needs to pay mortgage, but he already did that with Grampa.
 * The IOU lands on the lamp face-up, but the words can be seen the right way - if that was to happen, it needs to be face-down.
 * When Bart removes the mask, Lisa is in the fifth row, but in the next crowd shot, she isn't there.
 * The test course is just basically a straight line.
 * After Patty's "Throw away the envelope" line, she and Selma switch colors.