A Beer Can Named Desire - S4-E6
Continuity mistake: When Dale is meeting Joubert, you can see Lilly (blonde girl)is to his right. Next shot, she is on the other side of Joubert and next to the other girls.
A Beer Can Named Desire - S4-E6
Continuity mistake: After Violet has introduced herself to Bill you can see she has Joubert & Lilly to her right and in front of Bill. The following shot she has moved away from Joubert and is next to Bill's right side.
A Beer Can Named Desire - S4-E6
Continuity mistake: Toward the end of the episode Don Meredith takes Hank to the Superdome to try throwing the football into the Alamo beer can. After Hank makes the throw they walk to the football rack and Don picks up one of the footballs from the rack. We can see the top shelf has two footballs with the laces on the ball not visible. As they leave we can see on the same angle, there are three balls on the top shelf with the laces visible on all three balls.
A Beer Can Named Desire - S4-E6
Continuity mistake: As Hank is discussing the competition with Peggy he is wearing his light blue boxer shorts. After Peggy asks whether he is going to still enter the competition, they are now dark blue.
A Beer Can Named Desire - S4-E6
Continuity mistake: After Bill kisses Rose on the tombstone you can see he has quite a few sweat stains visible on his shirt. Bill then goes inside the house looking for Rose and the stains have disappeared.
Answer: Jeffrey Boomhauer is a Texas Ranger as can be seen in the final episode at the end when he sets his wallet down, it flips open revealing a Texas Ranger badge.